Chris Kaelin, a geneticist at Stanford Medicine, found himself thinking about cats. Not just any cats, but the loud, lovable, ...

We often assume that bigger is better, but nature constantly proves this wrong. The world’s smallest mammals are miniature ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The living mammal family tree is full of diverse species–big blue ...

Meanwhile, many birds are monogamous, which means males may live longer in part due to lower competition. Males and females ...

Some 40 kilometers east of the Tanzanian coast in East Africa lies Latham Island, a rocky, utterly isolated and uninhabited ...

Researchers are fiercely debating whether claims about the origins of mammals result from a bias toward Northern Hemisphere fossil sites. By Anthony Ham In 1996, paleontologists made a startling ...

A lack of female animal models in research has led to a clear failure to scientifically study sex differences. In 2017, Susanne Wolf, a neuroscientist from the Max Delbruck Center (MDC) in Germany, ...

Across mammal species, from baboons and gorillas up to humans, females usually live longer than the males do. However, this ...

As well as having long-lasting consequences for Native Americans to this day, the bison population of North America was ...

Sexual behavior is one reason why female mammals typically live longer than their male counterparts, according to a new study ...

An unusual fossil found in China suggests that some early mammals may have preyed on dinosaur, according to new research. The fossil — which is reported to have dated back to around 125 million years ...