The new research is the first to look back at early mammals in full color. Using advanced fossil imaging methods and a ...

CREDIT: Chester et al. 2025 “This fossil skeleton provides new evidence concerning how placental mammals diversified ecologically following the extinction of the dinosaurs,” study co-author ...

Allen Thomson on this subject in a late number of NATURE induces me again to draw attention to some objections I offered to the placental classification ... from other mammals; but his names ...

Newly analyzed fossil skeleton of Mixodectes pungens reveals its tree-dwelling lifestyle, dietary habits, and ties to primates and colugos.

For more than 140 years, Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about them had been mostly ...

Cases of the disease in mammals have mostly been detected in the Americas and Europe. Sign up here. Sheep were added to the list on Monday with the UK government announcing a first case had been ...

“This fossil skeleton provides new evidence concerning how placental mammals diversified ecologically following the extinction of the dinosaurs,” said Chester, a curatorial affiliate of vertebrate ...

A new study has found that exposure to second-hand smoke during pregnancy and actually smoking increase the risk of placental abruption, a complication that can be fatal to both parent and baby ...

The researchers compared the new Mixodectes pungens skeleton to those of other placental mammals, including plesiadapiforms, ...

It explains both asexual reproduction, as seen in amoebas and hydras, and sexual reproduction, which involves mating, fertilization, and the development of embryos. The video illustrates the ...

What is the Wallace Line? The Wallace Line is an imaginary biogeographical boundary that separates the distinct faunal regions of Asia and Australasia. It was first proposed by Alfred Russel ...