It doesn't look good for things like tigers, polar Bears, and other large endangered animals. But things that can adapt and have proven their survival skills in the past, (E.g Dogs, Rats, Roaches) will be plentiful. But endangered animals need our help to survive.
of course alot of animals where alive infact there still alive
No, there are no more prehistoric animals alive on earth. All animals alive today are decendents of prehistoric animals.
Tigers are still alive because people help them.
As of August 2015, rapper Future is currently still alive.
No, but there are animals that have dinosaurs as ancestors.
the animals that are still alive and their species hasn't yet died out
It is not impossible to study plants and animals that are still alive. Scientists frequently observe plants and animals and even run tests and experiments on them in order to learn more about them.
Erm...no. Maybe in the future stuffed animals will be imbued with artificial intelligence that will be considered 'alive', but for now however they are not.
over animals eat them so bigger animals are still alive
If there are no living animals or plants alive in a particular species, it is listed as extinct.
Some fish and reptiles were alive when the dinosaurs were and are still alive today. But there are no T-rex's or anything like that anymore.
They might be indangered or they might not still be in the world or they might still be alive and not be dead