Extinct Instinct was created in 1996.
Bears HAVE instinct much like people have instinct. So take that as a Yes or No. Or if you mean "are bears EXTINCT" then No. Instinct and extinct are not opposites.
The chimpanzee is not extinct.
Extinct. Yes, ALL dinosaurs are extinct.
Presuming that the question should read "extinct" rather than "instinct", then, no, koalas are not extinct. They are not yet endangered, either.
No, Zebra's are not extinct. They are very much alive.
The Instinct was created in 2003-06.
Fighting Instinct was created in 2004.
Instinct Records was created in 1990.
The Language Instinct was created in 1994.
Wild Instinct was created in 2001.
Creatures of Instinct was created in 1914.
An Instinct for Dragons was created in 2002.