"The only truly controversial part of this study is whether orders of extant mammals began to appear in the early part of the Late Cretaceous [about 90 million years ago]," says J. David Archibald ...

The researchers drew on high-quality genome sequences from 32 living species representing 23 of the 26 known orders of mammals. They included humans and chimps, wombats and rabbits, manatees, domestic ...

Mammals might have taken to the sky before birds, scientists announced Wednesday. A new order of mammals has been named based on a recently discovered fossil of a squirrel-sized Mesozoic-era ...

“We now understand the major steps of chromosomal evolution that led to the genome organization of more than half the existing orders of mammals. These studies will allow us to determine the role of ...

These sequences represented 23 of the 26 known orders of mammals. In Linnaean taxonomy, the way to classify living things developed by Swedish botanist Carlous Linnaeus, all living things are ...

However, the supertree shows that the placental mammals had already split into these sub-groups by 93 million years ago, long before the space impact and at a time when dinosaurs still ruled the ...

These nocturnal mammals belong to the order Chiroptera, the second-largest order of mammals after rodents. Known for their remarkable adaptations, bats have colonized diverse environments across ...

(15,000 kg), according Evans. Evans and his colleagues looked at size changes within 28 groups of mammals, called orders of mammals, on four continents and all ocean basins. They found a ...

The creature was so unusual, they said, it belonged to a new order of mammals. The US-Chinese team said Volaticotherium antiquus, which means "ancient gliding beast", belonged to a now extinct ...

The mass dinosaur extinction 66 million years ago gave rise to a new world order of bizarre mammals and giant "terror birds" that dominated the planet for a vast era ...

Looking at the largest dataset of viruses and hosts across several orders of mammal and bird, researchers from Scotland found that the number of bats and rodents viruses that have infected people ...

Marine mammals from different mammalian orders share several phenotypic traits adapted to the aquatic environment and therefore represent a classic example of convergent evolution. To investigate ...