Litoria tylerantiqua, a 55-million-year-old fossil, is Australia’s oldest known tree frog. It shifts the timeline for frog ...

A Cambrian fossil once thought to be a mollusk ancestor is now identified as a chancelloriid relative, reshaping ideas about ...

Cell types in animals evolved by step-wise diversification into sister cell types, which is analogous to the evolution of species or genes. We can identify homologous cell types between species by ...

Bronze Age life changed radically around 1500 BC in Central Europe. New research reveals diets narrowed, millet was ...