rat species

A new study shows that some prehistoric rat species were estimated to be the size of a bison, even as large as today's ponies.

Scientists recently discovered that the particular scent of bananas causes male rats to become stressed.

Spiders have outer bones, like shrimp or crab. They often have broken bones because they are very fragile. Falling from a low altitude can also cause them to die from fractures.

East African mole rat, better known for its nickname

A study from Harvard - USA showed that baby mouse tears contained a chemical that inhibited the desire of male mice.