Biodiversity: Mammals

With only about 5000 species, mammals are not among the most species-rich animal groups. However, they are vitally important to humans, as we ourselves and most of our pets and farm animals are mammals. Based on the important ecological role mammals play in today’s world, we are often tempted to talk about the Cenozoic as the "Age of Mammals“, although more realistically, we live in the age of insects.


Gray and black four-eyed opossum

Agile wallaby and skeleton of a Hare-wallaby

Skulls of marsupial and placental mammals

Hispaniolan solenodon