Until the Panamanian isthmus formed about 2.8 million years ago, North and South America were isolated continents with unique ...

Ancient mammals may have had an easier time moving across the Isthmus of Panama from north to south thanks to Mexico’s ...

New research is cutting male mammals down to size. While we may think of hulking elephant seal bulls or huge stags, these males appear to be the exception, rather than the rule. A new analysis of more ...

Move over monotremes and the range of rodents known to glow: over one hundred other furry creatures do, too, new research shows, vastly increasing the number of mammals known to show the spooky trait.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Mammals have been discovered to have a secret superpower: nearly all ...

Small mammals are early warning systems for environmental damage, but many species look almost identical, making them hard to track. Scientists have developed a new footprint-based method that can ...

Researchers reveal new insights into the complex evolutionary history behind the distinctive upright posture of modern placental and marsupial mammals, showing the transition was surprisingly complex ...

A look at nine invasive species hunts where bounties, prizes, and paid removal efforts are giving hunters a role in ...

Despite a common narrative that male mammals tend to dwarf female ones, fewer than half of mammalian species display that pattern, a new study suggests. By Emily Anthes See more of our coverage in ...

Every year, billions of migratory birds connect the world’s continents, oceans and ecosystems as they undertake epic journeys ...