Why are saber-toothed tigers front teeth so big?
They have big teeth to pierce there victims necks,to stop them from breathing.
The Sabre toothed cats were not tigers at all, only distant relatives. The large knife like canines were used to disable large prey quickly, so they could be finished off easier. Tigers today use a different type of assault on their prey, attacking the neck region, where the canines can grip the windpipe and quickly strangle the prey or sever the spinal column.
Improved Answer:
Sabre toothed cats were a complete different species than today's wild cats. The large teeth were used to severe the jugular arteries, as they were much too fragile to break through the bone.
It is likely to have been a generalist capable of feeding in both shrubs, open ground and even alongside the shores of the lagoon. It most likely hunted small prey, seizing it with its jaws if it was small enough or with its claws if it was larger.
How do animals become extinct?
Today, species become extinct because of humans, more than any other cause. Habitat loss, deforestation, hunting, and other things people do make animals become extinct at a rate of 150 to 200 species every day.
What types of animals that have become extinct?
Millions of species of insects
The tazmanian tiger and the lesser bilby to name two. i am sure there are more.
There are many animals that were alive 200 years ago, but are now extinct.
The last known living passenger pigeon died in 1914.
The golden toad
Great Auk
Blue Walleye
Some species of bandicoot
hundreds of birds--NOT including dodos; they died out in the late 1600s
... (please add a few more) ...
why are some animals are in danger?
.........because of pollution and for their meat
What animals in the ocean are extinct?
There are very many extinct species of whales, porpoises, and dolphins. Whales actually descend from a prehistoric dog that lived in the Middle East. Many species of whale thrived and became extinct between the doglike whales millions of years ago and the ones we have today.
Here is a page that has different species of whales and includes a list of extinct whales about 3/4 of the way down.
http://en.wikipedia.org/wiki/List_of_whale_species
Happy to help,
Anon
Is there still dinosaurs living today?
Depends what you mean. Crocodiles have not evolved much from the ages of the dinosaur but their size has changed slightly. Turtles also share the fact that they were bigger back in the dinosaur times. Animals from the dinosaur ages can't still be alive because that mean that they would be about 65 million years old. So the answer is kind of, because although they are a lot like animals from back in the Jurassic and Triassic ages, they are not the same as those animals.
The Jack Rabbit and Hares are generally classed together in the genus Lepus. Many are listed in the International Union for Conservation of Nature, (IUCN) Red List with a range of status from "least concern", and "data deficient" all the way to "critically endangered". There are about 32 species of Hare and Jack Rabbit, and none of those are listed with a status of extinct. For more details, please see sites listed below.
How fast can the American lions run?
Lions can reach speeds of up to 35 miles per hour, but they don't have the stamina to keep that up for long distances.
Why did the argentavis go extinct?
Since we don't even know if Amargasaurus is even extinct at all, it's hard to say, so far theres only speculation. Some say it is extinct and some say it never went extinct and might exist today.
How many animals have been extinct in the last fifty years?
Every decade an average of one animal becomes naturally extinct.
Are Iberian lynx already extinct?
the iberian lynx is esimated to be about 100 left the cubs r so cute and they r all dieing ='(
Why may a species become extinct?
Here are some reasons that some species become extinct:
Thyllacine, the "marsupial wolf" was hunted into extinction, as was the passenger pigeon and probably the moa.
Competition for resources can drive species into extinction.
Disease and predators also take their toll.
Insecticides like DDT weaken bird egg shells so that fewer of them hatch.
Loss of habitat is yet another factor.
Should you bring the Quagga back from extinction?
firstly, let me say theyre not actually gonna be bringing the quagga back to life, because its dead, its extinct, theyre just going to be breeding zebras with simular features, to make an animal simular visually, to the quagga.
theyre basically just breeding zebras to make more zebras, which although they my not look much like zebras, they are.
but the answer is, no cause you cant but they can try, cause all theyll do is breed a load of zebras with eachother to make more, slightly different looking zebras.
Can an animal species make itself extinct?
Yes, sometimes they are doomed by the evolution to extinct. For example, the cheetah attack's success is very low and in the undefined future it will extinct.
The Extinction of what group of animal is caused by the global climate?
Climate change has caused mass extinctions of species throughout geologic time, dating back millions of years. The earth goes through cyclic temp changes constantly, and species adapt, evolve, or simply die out. The current period of "climate change" has not been severe enough yet to cause any major fauna extinctions as of this time, and chances are good that it may not, as the warming claims may have been exaggerated.
What are the most famous extinct animals?
Well everyone knows about the dodo being extinct, and there is like the Tasmanian tiger too.
How did the Tasmanian tiger or thylacine become extinct?
The Thylacine (Thylacinus cynocephalus, also known as the Tasmanian Tiger and sometimes the Tasmanian Wolf), became extinct during the 20th century. The last known specimen died in the Hobart Zoo on the 7th of September, 1936.
It was hunted to extinction after a bounty was placed on it as a livestock killer. The government paid one pound for every dead adult thylacine head, and ten shillings for every dead thylacine pup head. Also, wild dogs that settlers brought in competed with the thylacines, reducing the prey of the thylacine.
The thylacine and Tasmanian devil both became extinct in mainland Australia hundreds of years earlier, probably because they were in competition with dingoes once the Aborigines came.
There is disputed evidence that a very small number may yet still exist in the Tasmanian wilderness, but nobody has seen, photographed or trapped one.
A recent attempt was made to clone one, but failed due to the DNA being of insufficient quality.
Further, it has been suggested that, in the early part of the Twentieth Century an extremely virulent disease began to spread first through the wild then captive populations. Exactly what this disease was remains unknown but it was described as being similar to but distinct from canine distemper. Another theory points to the fact that, by the time the Thylacine was confined to the island of Tasmania, the remaining specimens did not have sufficient genetic diversity to sustain the population. A similar problem is currently affecting the Tasmanian devil, resulting in the spread of the fatal DFTD, or Devil Facial Tumour Disease.
What do scientists believe caused the extinction of the dinosaurs?
because back in the 1800's there was this huge asteroid that hit the earth. since it was so big all the dinosaurs in the world all died and now u can find dinosaur tracks on the ocean floor, rivers, lakes, and other bodies of water.so they died and became extinct because of the asteroid. that's how it happened
because back in the 1800's there was this huge asteroid that hit the earth. since it was so big all the dinosaurs in the world all died and now u can find dinosaur tracks on the ocean floor, rivers, lakes, and other bodies of water.so they died and became extinct because of the asteroid. that's how it happened
Pterosaurs were a very diverse animal order comprised of numerous species which occupied many ecological niches, therefore the diets of different pterosaur species were likely as diverse (or almost as diverse) as, say, the various diets of modern birds. Some pterosaurs were piscivorous (fish eaters), whether skimming the surface as modern seabirds do, or waiting on the banks of lakes and other bodies of water for fish to approach. Many hunted insects (especially the case with smaller, earlier pterosaurs) and other invertebrates, or small vertebrates such as lizards and other reptiles, or even the mammals that were around during the Mesozoic. The larger ones (such as the enormous Azhdarchids) could probably devour small or juvenile dinosaurs whole, and might also have been efficient scavengers like modern vultures. At least some Ctenochasmatid pterosaurs were filter feeders analogous to modern flamingos (Pterodaustro had over 500 thin, closely spaced teeth which it used to very efficiently filter food from the water), there are even some extremely speculative and probably fictitious ideas that some pterosaurs were haematophagous, i.e. blood drinkers like modern vampire bats. All in all, the pterosaurs as a group consumed a wide range of available foods, although one could make a reasonable assumption that since all known pterosaurs were flying animals, and considering that flight is a very energy-intensive activity (and that it puts an upper weight limit on the animal), the pterosaurs would have been biased towards high-energy food sources that are fairly simple to digest such as meat.
What is the most common reason animals become extinct?
I am no expert on the subject, but it seems that someone should start this entry. Some primary reasons that animals become extinct include loss of habitat, changing climatic conditions, introduction of non-native species or predators into their habitat, pollutants, and predation by humans.
How did the pink headed duck become extinct?
The reason for its disappearance was probably habitat destruction. It is not known why it was always considered rare, but the rarity is believed to be genuine (and not an artifact of insufficient fieldwork) as its erstwhile habitat was frequently scoured by hunters in Colonial times.
How can you help prevent extinctions?
by not polluting the air, recycle,stop wasting trees to make too many paper which destroying the habitat for animals
go to people and say STOP if they don't listen complain to the President
Awake magazine article - 11/22/01 pg 3 had this to say: "Today it is humans who should accept responsibility for the increasing rates of species extinction." JANE GOODALL., CONSERVATIONIST.
Some scientist claim that 50 percent of all plant and animal species could vanish from the earth in 75 years. Scientists believe that in the distant past, species extinction was mostly triggered by natural causes. But the principal cause of the present crisis is different, they say. Evidently today's extinctions are caused by human activity. One scientist referred to humans as the "exterminator species."
How do human activities affect the rate of extinction?
human activity such as littering can affect the extinction of plants and animals in many ways. the plants can take in the harmful chemicals from products left around that were absorbed in the soil and could poison them. This would cause them to die. Animals could eat the stuff lieing around and could cholk and die. I dont really now this 100% but i know it can happen.