These sea monsters grew upwards of 40 feet (12 meters) long. About half that length was neck, a feature that allowed Styxosaurus to sneak up on schools of fish as it slowly cruised the shallow ...

The basking shark’s scientific name, Cetorhinus maximus, roughly translates to “great-nosed sea monster” in Greek. In reality, these placid sharks, found the world over, are totally harmless.

A massive sea creature has been found in the Pacific Ocean near Malaulalo, Solomon Islands. The creature stretches over 100 feet wide and is 300 years old.

Xiphactinus was one of the largest bony fish of the Late Cretaceous and is considered one of the fiercest creatures in the sea. A powerful ... long (5-meter-long) monster through the surface ...

This story appears in the August 2010 issue of National Geographic magazine ... Along with the bones of prehistoric sea monsters, Gingerich has found the remains of unlucky humans.