What is a mammal?

An alarming study from Zoological Society of London found using a sample of 16,704 mammals, birds, fish, reptiles, and amphibians from 4,000 species had a decrease in population of 60% in just 44 years time.

It doesn't take a genius to understand animals are suffering at Homo sapiens greedy hands. Never in the world's history has a single species caused an extinction event (at least that we're aware of). Please sign up for our newsletter to learn how you can help.