Nature is full of surprises, but few are as fascinating as hybrid animals, creatures born from crossing two different species ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Researchers have made an unusual observation that seems to be at odds with biology: an ant, known as the Iberian harvester ant can produce offspring of two completely different species. Many ants need ...