Koi carp are one of the most iconic ornamental fish in the world. Originally hailing from Japan, these beautiful fish have amazingly patterned bodies. There are many varieties–– and some of them are ...

Lego always finds a new way to surprise us: It seems every day there’s a new set to challenge yourself with or consider gifting to a friend. If you’re in the market for something new, Amazon ...

WATCH: Sharks biting alligators, the most epic lion battles, and MUCH more. Enter your email in the box below to get the most mind-blowing animal stories and videos delivered directly to your inbox ...

ABOVE: An image of dissected zebrafish pectoral fin bones demonstrates that fish with a gain-of-function mutation in waslb have two more long bones (right, arrowheads) than wildtype fish (left). M.B.