Below, take a look at every animal (except insects, which are extremely difficult to catalogue but which you can find here) that went extinct in just the last 100 years. The list is based on research provided by the Sixth Extinction, a website created to “enhance free public access to information about recently extinct species,” and in order of their approximate date of extinction. We’ve included all the animals confirmed extinct by the IUCN, and added a few more declared extinct by other credible individuals and organizations.