Selfie-takers are likely familiar with the facial expression known as the "fish gape" — a neutral face with unfocused eyes and slightly parted lips. But when gaping occurs in young fish — as they ...

Cichlids are one of the largest and strangest groups of vertebrate fish — fish with backbones — on Earth. They’re popular as pets and farmed in aquaculture, and scientists have been studying them ...

This is an old article, reposted from the original WordPress incarnation of Not Exactly Rocket Science. I’m on holiday for the moment, but you can expect a few new pieces here and there (as well as ...