A fossil shows early relatives of spiders were armed with claws
When you walk into any garden, you will find two fundamentally different kinds of many-legged animals: those with antennae — insects, crustaceans, millipedes — and those with claws at the front of their heads. That second group, the chelicerates, gave the world its spiders, scorpions, horseshoe crabs, and mites....
How Amazon Molly fish defies evolutionary theories
The Amazon molly is an all-female fish that has never had sex — and it should have gone extinct 90,000 years ago.
These female fish do something extremely rare in vertebrates; they produce...
A single female humpheaded cichlid fish was captivated with no males of her species around her. Still, she produced six offspring.
