I'm proposing eclipsazoology. Full explanation in the article linked below.
the study of animals is to save and read more about animals
paleozoology
Palaeontology
paleontologist
They are called Paleontologists.
The antonym of demography is individuality or singularity, focusing on unique characteristics of an individual rather than the larger population trends.
Extinct means the animals no longer exist so there can be no extinct animals in the Sahara. If there were, they would not be extinct.
Extinct means the animals no longer exist. There are many extinct animals, from dinosaurs to dodos.
Millions of animals have been extinct even scientist don't know the number of animals have been extinct, or the names of animals have been extinct.
As they are extinct there is little importance to modern societies other than those people that study prehistoric animals.
Nope, because extinct animals do not exist anymore.
Cryptozoology is the study of study of hidden animals refers to the search for animals which are considered to be legendary or otherwise nonexistent by mainstream biology. This includes looking for living examples of animals which are extinct, such as dinosaurs; animals whose existence lacks physical support but which appear in myths, legends, or are reported, such as Bigfoot and wild animals dramatically outside of their normal geographic ranges, such as phantom cats.
Paleontologists in common with archaeologists - both excavate and study animal bones.
No, not if they are extinct.