When I look at the incredible wealth of biodiversity contained within just the class mammalia in its 164 million years of existence, it’s staggering what we don’t know. The immense number of species that weren’t preserved in the fossil record and stories that took place before homo sapiens arrived to witness them are fantastic example of Percy Bysshe Shelley’s observation, “The more we study, the more we discover our ignorance.”
 Amphicyon ingens chasing Ramoceros osborni |