When you’re walking through a forest and pass a squirrel scurrying up a tree, or watching a robin in your yard make a nest for her eggs, you feel pretty big, right? It feels normal to us now ...

This suggests that at some point, small mammals underwent a significant shift in how quickly they grow – but it is unclear precisely what caused it. The finding is based on two fossilised ...

The secret is in their bones. How quickly young mammals grow and when they stop weaning from their mothers leaves telltale clues in the microscopic structure of their skeletons. By zooming in ...

In other words they were evolutionary innovators for their time period.” Modern mammals typically grow rapidly as juveniles and stop growing by adulthood. As anyone who has owned a hamster can ...

"It's not that they didn't grow fast, it's just that so many of them were so big that it took them a long time to go from a tiny little hatchling into an adult." Another hint at how mammals ...

What were their relationships with their Cretaceous forebears and modern-day mammals, and how did they move, eat and grow? These questions flummoxed paleontologists for generations. Enter Thomas ...

The research highlights the growing awareness of sex biases in biology, but the team note that their paper is not the final word on biological sex and size. Having only been able to include 7% of ...

offer important insights into how these marine mammals grow, feed, and communicate. The new findings challenge previous assumptions about cetacean sensory systems. Unlike land mammals, dolphins ...

Early mammals were small, strictly nocturnal ... every era of the distant past in technicolor. “When I was growing up, all of the books on fossils said that we would never know the color ...