According to most experts, the first mammal was Morganucodon, a small, shrew-like rodent that appeared during the Jurassic Period, approximately 200 million years ago. It weighed a few ounces and ...

The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it ...

Using whole genome sequencing and cutting‐edge analyses, researchers at Stockholm University have uncovered the surprising ...

These mammals are the "sole living representatives" of monotreme -- or egg-laying -- lineage that diverged from therians, or marsupials and placental mammals, more than 200 million years ago ...

University of Adelaide researchers discovered monotremes use a completely different sex determination system than other mammals.

U.S. to add pangolins, ‘most heavily trafficked mammal,’ to endangered list The U.S. Fish and Wildlife Service proposed adding seven species of pangolin, which are sold for their scales and ...

However, the genetic survey only compared 13 mammal species and did not include bears ... Among birds, turkey vultures top the list for a keen sense of smell, which helps the flying scavengers detect ...

The agency is proposing to add seven of the world’s eight pangolin species to its endangered list: four in Asia and three in Africa. (The eighth species, Temminck’s ground pangolin, has been ...

A tiny jaw fossil in east-central Greenland leads to the discovery of a new mammal-like species, Nujalikodon cassiopeiae, from 200 million years ago.

U.S. officials proposed Monday to protect the pangolin, a small, nocturnal mammal covered in scales, under the Endangered Species Act. The pangolin is “the most trafficked mammal in the world ...

FILE - A pangolin looks for food on private property Feb. 15, 2019, in Johannesburg, South Africa. U.S. officials proposed Monday to protect the pangolin, a small, nocturnal mammal covered in ...