Gut length driven by 'sexual conflict' in fish species

A new study that looked at gut length variation between cichlid fish species found that some of the genetic loci for the trait are sex-specific even though males and females of the same species have the same gut length. The ...

When domesticated rabbits go feral, new morphologies emerge

Originally bred for meat and fur, the European rabbit has become a successful invader worldwide. When domesticated breeds return to the wild and feralize, the rabbits do not simply revert to their wild form—they experience ...