The discovery of Typhlichthys styx shows that cave-adapted species can continue evolving and splitting into new species, with underground aquifers playing a crucial role in that process. Researchers at Yale have identified a previously unknown species of eyeless cavefish, a finding that challenges the long-standing view that caves and other underground habitats are evolutionary dead [...]

A newly identified prehistoric crocodile relative, Eosphorosuchus lacrimosa, was discovered alongside another croc species in New Mexico fossils dating back 210 million years. Around 210 million years ago, two crocodile relatives about the size of modern jackals stood together along a humid riverbank in what is now northern New Mexico. One of them, Hesperosuchus agilis, [...]