Jawless, bloodsucking fish could help us understand how humans and all other vertebrates evolved, scientists say. Turns out, lampreys — notable for their lack of jaw and generally terrifying ...

Watch this jawless alligator thrive after surgery and become one of the world’s most well-known animals. After being rescued from the wild in Orlando, Florida, a jawless alligator named Jawlene ...

The most ancient fish were jawless, and since our whole group has jaws, we can safely choose a jawless fish as a fairly recent ancestor. Unfortunately, this ancestor is long dead. To compare ...