So why is sex nearly universal across animals plants and fungi? Shouldn't natural selection favor animals that forgo draining displays
and genetic roulette and simply clone themselves? Yes and no. Many animals do clone themselves; certain sea anemones can bud identical twins from the sides of their bodies.
Aphids bees and ants can reproduce asexually. Virgin births sometimes occur among hammerhead sharks turkeys boa constrictors and komodo dragons.
But nearly all animals engage in sex at some point in their lives. Biologists say that the benefits of sex come from the genetic rearrangements that occur during meiosis the special cell division that produces eggs and sperm.
Shouldn't natural selection favor animals that forgo draining displays and genetic roulette and simply clone themselves?
One animal however has done just fine without any sex at all. Bdelloid rotifers can be found in most freshwater ponds measure a few tenths of a millimeter long contain only about 1000 cells
among animals. Recently Meselson and Gladyshev made an even more amazing discovery: Bdelloids have foreign DNA from bacteria and fungi in their chromosomes
I'd love an animal that grew a ty-dye set of feathers. There are some justifications for it;
but that just improves the method of selection from the same group of flamboyent animals.
It still doesn't seem like a sufficient explanation for why species with less-demanding females don't overcome these inefficient animals.@
I think complex animals (not 1000-cell whatchamacallits) need to select mates based on what they perceive to be desirable traits.
The World's Fastest Cat Video The cheetah the world's fastest land animal can race up to 75 mph for short bursts.
and greyhounds are very very different animals they've independently evolved to have very similar running styles.
Both animals use what's called a rotary gallop in which the leg hitting the ground moves in a circle:
and the animal in slow motion looks like it's flying. Then there's the compression phase in which the front and hind legs actually overlap underneath the animal
and the spine is crunched up getting ready to pound the ground and push forward. It's a pretty amazing video of some pretty amazing animals. via Digg Note that
while cheetahs and greyhounds are very very different animals they've independently evolved...to clarify...
are greyhounds a naturally selected evolved species or are bred they selectively breed of dog? I thought the second fastest land animal was the pronghorn antelopethe pronghorn is the second fastest land animal
and the African wild dog is the fastest canid. Unless you are referring to rate of acceleration...To be pedantic its not even the 3rd fastest land animal.
That said some groups of people have survived even thrived on an animal-only diet. Research suggests that traditionally the Inuit ate any number of meats including seal whale caribou and fish.
and Environment at Mcgill University in Montreal was eating every part of the animal and you have to eat some of it raw.
That is why lions (and every other carnivore on the planet) do just fine. You are what you eat and
(and the problem is usually over ingestation with most animals hence the owl pellet and the hairball).
I'm not eating the whole animal. It's not that I don't like vegetables; I love them.
and helps some animals migrate and it may be a lot more fragile and febrile than one might think.
In nature animals which use the field could be confused mightily-birds bees and some fish all use the field for navigation.
As an eye-opening feature in Discover describes the eggs can get swept up by pigs as the animals forage for food.
I have when it comes to the consumption of animal meat is the suffering of the animal
which the animal is killed and the intelligence of the animal. It seems that entomophagy doesn't suffer from the problem of ill-treatment during animal raising
and both enjoy the benefits of eating meat bug and the health aspects (hype) of the marijuana in the animal.
The olinguito as its name suggests is highly similar to another member of the raccoon family the olingo an arboreal nocturnal animal that looks more like a combination of a possum and a monkey than a raccoon.
In fact says Smithsonian there was actually an olinguito in American zoos in the 1960s kept in cages with olingos.
I honestly think that this could be the last time in history that we will turn up this kind of situation both a new carnivore
if beautiful species such as this animal is to survive into the distant foreseeable future e
This animal was designed clearly and if it did predate anything then that would show De-evolution
and water filled A lot of the work is done my hand or with the assistance of animals.
or animals Like so many lies the safety of genetically modified food relies on yet other lies.
or animal that has been modified genetically through the addition of a small amount of genetic material from other organisms through molecular techniques.
It's because of this rat dilemma they have highlighted another study that used a different animal for 5 years.
and the sex of the mammal all three varieties of GMO corn caused damage to the animals major detoxifying organs namely the liver and the kidneys.
and female rats the death rates for the animals fed GMO corn was two to three times higher than the animals eating non-GMO corn.
The term soil is used usually to describe a more organic compound that's broken down plants and animals and fungi.
Plants animals whatever it eats to survive. Where did that come from? On and on and on until finally you say it came from the constituent elements that are 3. 9 billion years old.
Philippine governmental authorities will evaluate the rice's food safety feed safety environmental safety safety to humans safety to animals all these are considered Antonio Alfonso the lead scientist for the Philippine Rice Research
@shutterpod...serioiusly genetic modifications happen each time an animal or plant reproduces. Domesticated animals and cultivated crops are genetically different from the wild varieties they were derived from
Genetic engineering allows scientists to cross the species barrier mixing genetic material among of animals plants and microorganism.
There are some pretty significant species differences between animals like rats and humans says Organovo's Presnell.
People normally do a reaction purify the chemicals take the drug add it to cells look at the response formulate maybe do animals
The same would be found in cuticles of the fingernail âÂ#ÂTHE thing here is that to grow new STUPH cell division must take place.
or fingernail cuticle (instigating cell division) would help in cell division of cells in a packed state.
Can they use this technology to make burgers from less common animals? Penguins? I don't like the smell of penguins
You can do it with any sort of satellite cell from an animal. The leftovers were taken home for Dr. Post's children. well with any new product lets see what happens to the first few people who eat this
obviously there would be no purpose in keeping animals meant for food. will the vegetarians jump on board?
and would signify any real meat that has not been taken from animals but grown). Or Growth Meatwe can't just keep ading more and more cattle pigs chickens ect.
and mennonites and zoos and peta freaks cows will go extinct well we might keep a herd for genetic improvement
We can reduce the number of livestock and stop KILLING helpless animals!!!I'll take A g-burger please!!!
or those morally opposed to killing sentient animals for food. I see where this can have value
if a non-animal growth medium could be developed. As long as the growth medium production does not require even more productive land to produce the cultured meat than actually running animals on the land.
Even as a vegetarian I realize that animals as a food source leverage land that is not possible to efficiently cultivate.
Let's just get to the point where it is more efficient than ranching and not dependent on a slaughterhouse before we start jumping up and down with joy..
and the animals that rely on them so it is good that this is being proposed for counties that are obsessed less about not upsetting a natural balance in a human-created desert.
or wild animals and there were no fields or forests or streams. Worst of all the air was thick and stinky.
The elk are eating so many berries including the entire berry shrubs that animals that rely on the shrubs like bees
Turns out the two most iconic animals of Yellowstone depend on each other in more ways than we thought. via Physorg...
and animals (and conservation models and ecological history and etc. etc.)that they live with every day.
Cartoon animals aren't human. Because they're not real to us we don't care that they get hurt a notion that's reinforced
The beaver is a destructive animal that needs to be hunted or exterminated. A single beaver can
In order to capture the pigs'decomposition on video four lights flash on for a few minutes every quarter hour (constant light would scare away too many animals changing how the pigs decay.
and SV40 has been proven to cause cancer in animals. Okay that's just old news fair enough let's pretend everything is safe now.
At 15 feet long and 2. 5 tons the quadrupedal herbivore belonged to a family called ceratopsids a group of dinos from the Late Cretaceous period that had beaks horns
With the food chain's bottom tier knocked out most animals would die off quickly but scavengers picking over the dead remains could last until the cold killed them.
Humans could live in submarines in the deepest and warmest parts of the ocean but a more attractive option might be nuclear-or geothermal-powered habitats.
and corn (although keeping entire barns warm would be a problem) then butcher these animals for food
or other animals crazed by starvation.</</b>I would estimate that at least 99.99 percent of humans would be dead within a year with people who own livestock
but the animals were paralyzed from the neck down due to an inability to properly connect the spine.
The young animal won't have a lot of ivory on it but the kill draws in the mother whom the poachers then shoot too as Scientific American reported in 2009.
Animals then get that carbon from eating plants or eating animals that eat plants. Other research groups have used the Cold war spike in carbon-14 to figure out the birthdates of human brain cells fat cells and teeth.
The ivory group tested many animal tissues this way including hippopotamus teeth elephant tail hairs and blue monkey hairs in addition to elephant tusks and rhino horns.
For tissues formed after 1955 the scientists are able to pin down a death date that's within 0. 3 to 1. 3 years of the animal's actual death.
So we shouldn't be surprised that Rusty the red panda made a break for it last night from the National Zoo.
Red pandas may look like terrestrial animals like raccoons but they're arborial--they're awkward and clumsy on the ground
The Association of Zoos and Aquariums notes that to prevent depression red pandas have to be given items to climb on.
Provide climbing apparatus for older animals it reads but beware: red pandas are escape artists. They might not be great jumpers
That plus an energetic curious and playful personality and metabolism makes them one of the best and most frequent jailbreakers at the zoo.
or so calling the zoo insisting they'd seen a red panda. The red panda effect refers to the way the brain fills in the blanks--you see what you expect to see in other words.
So the zoo stuck a lightly electrified fence over the top of the enclosure thinking that would do the trick.
She's a character said the zoo's director of development. In one of the longest escapes ever documented a mother red panda
and her cub managed to escape from a Scotland zoo and survive on the lam for more than two months Pichu (the mother)
Pichu was discovered about two miles away from the zoo up on a tree branch by a very surprised farmer.
Apparently it took awhile for zoo staffers to bring it down; it eventually took a tranquilizer dart
while park-goers stared up at the best animal to ever be found in a London park.
Last year at the Dresden Zoo a red panda managed to get out of its pen and climb high up into a nearby tree.
Since red pandas escape so often zoos that house them typically have a procedure for getting them down from the trees they like to hide out in
But in the case of this particular animal it surprised everyone by falling 30 feet down to the ground where it suffered a concussion
Might do well to come up with another way to convince escaped animals to come down Dresden. At around 6 p m. on June 23rd Rusty the red panda somehow made his escape from the National Zoo.
Nobody's quite sure how; this is another instance of zookeepers arriving at the zoo and noticing a red panda's absence
though Thinkprogress alleges that budget cuts may have reduced staffing. Rusty less than a year old caused a huge stir with his disappearance sparking a citywide panda-hunt
He was found this afternoon in a bush not far from the zoo was brought safely back
Instead scientists believe that the spikes trap animals with thick fur like sheep which then starve to death fall to the ground
I feel so sad for the animals it catches...I am not secretly eavesdropping on you.
and also involves some genetic manipulation and almost certainly some inhumane treatment of animals. How happy are those pancreas-less piglets really?
and don't require as much farmland as animals. In fact you can raise insects right in your kitchen!
#Envisioning A Future Of Custom-Grown Meatthe era of exotic meats grown to order--with no animals killed in the process--could be on its way.
Cells are extracted from living animals and cultured in the lab on a diet of glucose and amino acids where they grow into small strips of muscle tissue.
and how does it compare to the old fashioned way of raising an animal on a farm?
But as a vegetarian that abstains mostly because of cruelty to animals this would become an option for me.
If you want efficiencyeat the grain the animal you killed for dinner ate. Meat is a luxuryand questionable for your health (especially red meat) if eaten on a regular basis.
me that an animal has to suffer and dieif I have the alternative of lab grown meat when
or intentionally mixed with meat from once-living animals. If the tech is solid eventually they will produce lab meat that is healthier and tastier than natural meat.
Then an animal comes along (me or you) and breaths in the fresh purified O2.
Plants and animals form a symbiotic relationship you need one for the other to survive.
Here's an animal that combines features that we've just never seen before in one fossil primate.
and that's an animal that's unlike everything else we've ever seen Beard says.
or mosaic of different features that are found in different animals today but never together in one.
Animals have been shown to have altered their minds by gut bacteria--is it the same for humans?
and emotion recognition in animals so this was a test to see if the process extended to humans.
and fungi as well as animals and you can sort the list by location type or habitat in case you were particularly curious about creatures that live in the air above Oceania.
While we are tracking one species here and there individual towards endangerment animals are not a species that live by themselves
When enough animals of the environment become endangered a tipping point will happen and suddenly humans might find themselves crashing towards extinction!
The story of how humans evolved from knuckle-walking primates to upright bipeds is still a matter of great debate among anthropologists.
since many large African carnivores can't climb. The researchers call for further study of ancient landscapes to support this theory though ancient conditions in active tectonic regions like the East African Rift can be difficult to reconstruct
or how such a pathetic animal ever survived in the wild. This is all just story telling
Once people learned to make fire the other animals were put at a permanent disadvantage e
It is in the animal kingdom a very tasty treat which is unfortunate for the cicada but not so odd.
Literally every insectivorous animal in the northeast--songbirds carnivorous birds (hawks owls) opossums foxes cats shrews snakes spiders and even dogs--will gorge on cicadas.
It's contrary to the survival strategies of almost every other animal: it intends for a huge percentage of its population to be eaten.
or fauna that occur so rarely and yet so regularly. So the ecosystem doesn't depend on the cicadas the same way some animals may rely on certain seasonal fruits
or the migrations of pollinating animals. Instead the cicadas serve as a kind of bonus or treat.
Redwing blackbirds and eastern bluebirds have been found to have much stronger and healthier broods in years that coincide with Magicicada's emergence as do mammals like foxes and raccoons.
or the ambiguous gross-sounding protein layer which could be made from milk animals or plants.
All we are are animals. Nothing more. Human beings have tried always to personify EVERYTHING and frankly I have had enough of it.@
That's how most plants and animals get to isolated islands --which The americas were at the time.
Many of the flora and fauna that had populated the planet during the Eocene just couldn't survive in the new colder world.
This event is called the Grande Coupure--occurring about 33.9 million years ago it was a mass extinction of animals in
Well the Platyrrhines are not especially adaptable animals. Unlike the macaque and other Old world monkeys--or even non-primates like the raccoon or fox--they need trees they need heat
Other animals and probably humans passed over the Bering Land Bridge from Russian into Alaska
Why couldn't the monkeys just walk to North america like any other animal and adapt along the way?
Even the cold monkeys cant navigate the WARM areas to get to the COLD areas. that is why animals die off the habitat they are in dies offi've seen quite a few.
In 1979 over 1400 animals were relocated to Morgan Island (Klopchin 2)..http://en. wikipedia. org/wiki/Morgan island south carolinamr. george---it mentioned that possibly primates possibly crossed the atlantic in some type of boat
they migrated also travelling around the sea. in south america there are drawings on cliffs of animals that existed in africa
and one in the southern hemisphereand the animals leaving africa for south america could have travelled around a sea in the southern hemisphere. mr. george-i forgot to mention that
You need more than vegetables for sustenance like grains protein fat (vegetable or animal) and basically calories
and fruit flies have found that the animals are able to sense nutrition independently of taste.
Over and over researchers have engineered genetically lab animals not to be able to taste sweetness and yet over time the animals learn to prefer mixtures containing real sugar instead of artificial sweetener.
Over time animals learn to prefer mixtures containing real sugar instead of artificial sweetener. You can't genetically engineer a person not to be able to taste so Small
and her research team instead had people drink artificially flavored drinks. Some of the drinks were calorie-free
All of these brain circuits evolved millions of years ago in animals that lacked consciousness but still needed to incorporate fuel she says.
Then the thinking goes the animals were subject to the forces of nature. Those in the desert got better at resisting the sun
if you are a fish but not a terrestrial biped. The paleontologist Neal Shubin points out that our inner fish constrains the human body's performance
Which one could survive escaping from a wild animal (we still have these by the way? Just try it
or many other animals that demonstrate distinctly Human qualities. It fit nice with your myth of the gods
Yes you most correct many animals hord to get by for a season for NEED. Humans go way way beyond need and that is obvious to all. 12 Actually
Yes humans horde more than any animal but It is quite logical to do so if they want to have the best chance of survival.
and also this is not a very common animal so guess whatever you want! The first person to get it right wins!
Seth Rosenthal who for the second week in a row correctly guessed the mystery animal first!
--so it stands up on its super-muscled hind legs reaches its long neck up and can plug leaves off the acacia tree that gazelles
But it's not a huge animal only reaching about 41 inches tall. There are an estimated 95000 gerenuks in the wild;
I'm always amused by the incredibly high and totally subjective financial values environmentalists place on things like trees plants insects or animals.
Higher animals such as primates and dolphins evolved in a greenhouse earth. Earth was damaged by an evasive plant species that kicked a series of global catastrophes called icebox earth
Animals like cows and pigs can digest cellulose thanks to symbiotic bacteria in their digestive tracts
Why only two eyes I have searched for land animals with 13 eyes or eyes in the back of their head. where are legged the 11 creatures
I'm just saying we need to see more animals with variety much like the platypus.
just as Creationists are mocked Darwin had no way of showing that all animals were related much less plants and animals.
and DNA can even be swapped at will between any two species even plants and animals. Darwin would be concerned
Animals are showing signs of radiation exposure. Fish have been caught with radiation. An entire species of nails is extinct due to Fukushima.
Animal and plant mutations are being found everywhere. There is no doubt about it. Man-made nuclear radiation is wreaking havoc on human genetics human health and our environment.
and other animals have great intelligence and instincts! --Sir William the Cat of www. indefenseofcats. comi'm almost certain one of mine is peeing on towels
which are very adaptable is also killing other bugs and animals then the statement âÂ#Âoe...
In the future the same techniques could apply to vaccines to the polio virus which belongs to a large group of viruses related to hoof
and sheep giving the animals fevers and blisters and reducing the amount of milk they give.
There are plenty of good kibble manufacturers who make high quality food without using lab animals to taste-test.
They're scavengers predators and carnivores (not omnivores like bears. I say feed'em what they want.
I wish that Mary pass this msg on to AFL to stop using such names for animals.
We see different types of animals. Based on what we know the only way these could have come about is through evolution.
It is no different from We see different types of animals. Based on what we know the only way these could have come about is by God creating them.
when an animal evolves from one species to another it has to be interbreed able to
which means its not another species. When it all comes down to it a change has to be made that makes the animal not able to reproduce with the previous genetic set up.
I don't know of any other type of animal that can have such a diverse set of traits within the same species. The record low for a full grown chihuahua is 7 ounces (just over half a pound.
Same with any animal...Give them a million years and they'll likely diverge like chimps humans orangutans gorillas did millions of years ago.
I believe the term they were looking for was natural selection. obviously the animals smart enough to not get hit by cars would be selected the ones for based on the new environment the birds live in currently.
complex cells (eukaryotes) before 2 billion years ago multicellular life before 1 billion years ago arthropods before 570 million years ago complex animals
Neanderthal is a normal typical animal of evolution Earth. Modern man comes from this evolution but comes with external enhancements for the benefit of the creator.
Modern human are like no other animal On earth. Neanderthal man was the better animal for natural environmental Earth.
Modern man is made for the god overlordã¢Â#Â#s purpose and perhaps to travel later the cosmos.
I did not say all animals must lose their fur in hot environments. I simply said that losing fur would be an advantage.
Now modern man is no longer the natural animal he once was. My theory is a work in progress.
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