Reptiles are cold-blooded animals with scales/scutes covering their skin. Most of them are tetrapods, with four legs or leg-like appendages. It is believed that reptiles started evolving around 330 million […]

Taxonomy and evolution See also: Horse evolution Zebras in Mikumi, Tanzania Zebras evolved among the Old World horses within the last 4 million years. Grévy’s zebras (and perhaps also Mountain Zebras) […]

10 interesting facts about animals Animals There are about one million different species of animals, birds, insects and fishes in the world. Majority of them can still be found in […]

History of Mammals (mya = million years ago) Long Geologic Time Chart EON ERA PERIOD EPOCH PIVOTAL EVENTS P h a n e r o z o i c E […]

  Tropical Dolphin Research Foundation (TDRF) scientists work on topics related to the behavioral ecology of tropical dolphin species. Broadly, the research priorities at the TDRF are: To increase our […]