You know that feeling when you’re especially hungry and want to eat as much as possible, but your mouth is only so big? Well, some animals don’t have that problem! Unlike humans with our relatively ...

Evolution has created some pretty crazy things, and the head of this fish is definitely one of them. The rockhead poacher (Bothragonus swanii) is small, armored, and shaped remarkably like a stone.

Scientists found a “slender” fish with a “large” head in a river of southern Mexico and discovered a new species, a study said. Photo from Domínguez-Cisneros, Velázquez-Velázquez, Domínguez-Domínguez ...