Some wasps and frogs evolved similar chemicals that cause pain in predators, even though the species are not closely related.

Certain species of wasps and frogs share a pain and inflammation peptide similar to one found in vertebrates to help defend against predators—a discovery that contributes to a shifting view of how ...

The next time you stub your toe, get pricked with a needle, or have your fingers jammed in the lid of a piano, you might pause to consider the marvellous way our bodies are able to heal such injuries.

In the rainforests of Central and South America, a bright green snake often slips silently through the trees. Known as the parrot snake, it is long, t.