It’s obvious why a stick insect’s wardrobe is the way it is. Look like a stick, avoid getting eaten. But scientists in Japan noticed that despite their camouflage, stick insects became bird food quite ...

A long-standing debate among evolutionary scientists goes something like this: Does evolution happen in a predictable pattern or does it depend on chance events and contingency? That is, if you could ...

After conservation efforts that lasted for more than a decade, the San Diego Zoo Wildlife Alliance is finally bringing the critically endangered Lord Howe Island stick insects to the forefront.

Among animals where sexual reproduction is common, there are quite a few species that reproduce only with females. In such species, females give birth to female offspring (this is called ...