Sadly, there are so many endangered species that I have a six volume encyclopaedia of species that are endangered in North America alone. Volume 1 is mammals, birds, and reptiles. Volume 2 is filled with amphibians, fish, snails, mussles and clams. You get the idea. Each one a link in the chain ... every one of them different and special and an amazing feat of nature and creativity.
Endangered Three (2004)