You would think that a mouse and an elephant would not get along, but in this story they do. Oh goodness I’m getting ahead of myself. Let’s start at the beginning. Once up on a time an elephant, well ...

Scientists have for the first time measured how fast large-scale evolution can occur in mammals, showing it takes 24 million generations for a mouse-sized animal to evolve to the size of an elephant.

We’re used to mice being small and elephants being big, but there’s no reason they will stay that way forever. Elephants could become pipsqueaks and mice could get mammoth… and one of those will ...

What species is better at fighting an infection, a mouse or an elephant? Body size is one of the most noticeable differences among species, but relationships between immune defenses and body size have ...

Conservationists recently tried to relocate a wild elephant from one forest on the island of Sumatra to another. The elephant’s original home, the Bukit Tigapuluh forest, has been heavily fragmented ...

Imagine the family reunion: In one corner, a three-ton elephant, in the other, a mouse-like mammal weighing in at about one ounce. The small creature, which was discovered in Namibia, looks like a ...

The sperm of the Asian elephant has the shortest sperm relative to its body size, whereas the house mouse (Mus musculus) has the longest. Humans and elephants have sperm of roughly the same length, ...