Monotremes are unique mammals that lay eggs, but their limited geographic ranges make them vulnerable. We explain why.

Large wild mammals—from elephants to antelopes—are already struggling to cope with global warming. Now new research shows ...

A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...

Despite being mammals, these remarkably cancer-resistant animals share a lot in common with cold-blooded species.

Voles are small mammals that tend to have large heads, compact bodies, and short noses. Microtus means “small ear” and the voles of this genus have short ears that barely protrude from the fur ...

There were anecdotal stories about other mammals having iridescents, but those had not yet been confirmed. So, with that in ...

NParks is developing guidelines to shield Singapore's marine mammals from underwater noise generated by coastal development ...

Shaggy black fur and large size distinguish this animal from all other Adirondack mammals. The black bear has a short, inconspicuous tail. The body and legs are short. The head is broad with erect, ...

Understanding how life rebounded after an asteroid strike 66 million years ago, which wiped out up to 75 percent of Earth’s species and ended the dinosaurs’ reign, has been hard. Fossils from the ...

The Case Against Marine Mammals in Captivity was first produced in 1995 as a comprehensive resource for the public, the media, scientists, students, and policymakers to learn the various arguments ...

You can say this about mammals: We've had a good run. Over the 250 million years since the first mammals diverged from reptiles and birds, we hairy, warm-blooded vertebrates have come to dominate the ...

The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping tech, ...