Calling these animals scary is an understatement. Welcome to WatchMojo, and today we’re counting down our picks for the most horrifying animals that no longer exist.

Amongst the ever-growing list of animals that are going to be extinct, here are the ones we may never see again.

The purpose: to capture for posterity species that someday might be extinct ... nearly 10,000 animals in the Ark. He plans to keep going to 15,000, which could take another 10-15 years.

A growing group of scientists is trying to bring back extinct animals, an idea that is drawing closer than ever because of recent advances in gene editing. Shapiro, one of the world’s leading ...