Ya many species of animals go extinct like Dinosaurs for example
I'm fairly certain that a group of newly hatched/born animals, of any kind, is called a brood.
A population is any group of living species, from any kingdom, from bacteria to animals, that live in the same area.
only insects from the animal group.
Any animal that lives in a group or herd is communal.
it depends on what type of animal it is for example a group of otters is called a raft, Wilda beast -Herd. But if u have any multiple choices of animals its just called a herd or a group!
Sterol
The platypus is completely unique, and does not resemble any other living animal.
Not completely, but enough to kill any plants or animals that live in it.
Any two game birds is called a brace.
No, they are not. Platypuses are completely protected and may not be used for commercial purposes in any way at all.
There are more insects than any other animal on Earth.
The naturally-occurring group 8 elements (helium, neon, argon, and kyrpton) are not completely inert, but they are more nearly so than any other group.