Be glad you weren't around when these Jurassic speed demons lurked the Earth. They were faster, and deadlier, than anything ...

Shipwrecks off the North Carolina coast attract sand tiger sharks and great white sharks. Divers film the action.

The Marvel of Nature: What Are Flying Fish? Flying fish are not your typical underwater dwellers ... ocean is a constant arms race, with predators and prey evolving new tactics in a never-ending ...

For the first time, a camera about 50 feet away recorded a group of orcas closing in on a solitary prickly shark in deep ...

With the loss of the top predator in the area, populations of its prey ... area. Image courtesy of Chris Fallows. Analyzing data from standardized boat-based surveys, baited remote underwater ...

At time when ocean reserve protections are threatened, new research shows bans on fishing made kelp ecosystems more resilient ...

Cuttlefish wave their expressive arms in four distinctive dancelike signals—potentially letting them communicate visually and ...

Nicknamed the "king of the kelp forest," giant sea bass are among scuba divers' favorite characters to spot off the ...

Fish use the structure to hide from predators, plants begin to grow ... or mistake the human for prey. Experts agree that if you see a great white shark, remain calm and stand your ground.

The fish use this to crush their tough-shelled prey including crustaceans and molluscs ... Many are known by common names that relate to the swollen shape they adopt to deter predators. Examples ...

Osprey populations in Massachusetts in the colonial era declined because colonists chopped down trees to create farms ...