Ancient mammals that lived in the time of dinosaurs were mostly the same dark-brown colour, according to a new study providing clues about how those mammals evolved as they faced giant predators.

Republican members of the U.S. House Committee on Natural Resources took aim Wednesday at the Endangered Species Act (ESA) and Marine Mammal Protection Act (MMPA), arguing both landmark statutes ...

Mar. 12, 2025 — A critically endangered new species of killifish sampled from an ancient forest in Kenya in 2017 and 2018 has now been described. Nothobranchius sylvaticus, from the Latin ...

Mammals are distinct from birds, reptiles, amphibians, fish, and invertebrates in three key ways. First, all mammals have fur or hair. In some species this presents as a very conspicuous, thick coat, ...

Mar. 13, 2025 — A recent study has reclassified the species commonly known as the Javan rhinoceros, proposing a more precise scientific name: Eurhinoceros sondaicus. The research highlights key ...