In its 4.5 billion year history, Earth has undergone five mass extinctions and we are potentially in a sixth era of mass death. Today’s crocodylians are the surviving members of a lineage called ...

Most people think of crocodilians as living fossils—stubbornly unchanged, prehistoric relics that have ruled the world's swampiest corners for millions of years. But their evolutionary history tells a ...

An expedition spotted a baby of the species in the South Sandwich Islands. This cephalopod can grow to more than 20 feet and has proved elusive in its deep-sea environs.

A one-foot-long young squid was spotted swimming in the waters around the South Sandwich Islands. The footage is ...

Young tegus are emerald green with black markings and a tail that has yellow and black bands. Over several months and after ...

New research shows sperm generate corkscrew-like fluid vortices that spin in sync with their tails, providing an unexpected ...

When we picture sea turtles in the wild, it's easy to envision them as armored warriors—their hard, resilient shells serving ...

If you look quickly, you might mistake this swimming owl for a seabird. In fact, owls are not natural in water and rarely swim, which makes this footage by owlsanity even more fascinating. Owls are ...

Researchers have called this bipedal locomotion “stilt-walking ... first documented use of tools by invertebrates. Octopuses swim using a type of jet propulsion. The octopus is propelled ...