Scientists at Chester Zoo are testing a "tail-tagging" technique to help reintroduce a rare species into the wild. Last week, ...

The job includes some of the weirdest tasks on the planet, from sorting out thousands of letters to wiping penguin poop and ...

In this important study, Li and others identified cell membrane receptors for juvenile hormone (JH), a terpenoid hormone in insects that regulates their development and reproduction. While ...

As they matured, they grew plumage on their bodies. But as adults, they moulted their body feathers all at once. Until their new feathers grew in, they had to survive without their insulating plumage.

We have two probable pairs and one extra male. It can be difficult to tell: although rock wrens are sexually dimorphic, with males more vividly coloured than females, a freshly moulted female can look ...