Ever wonder why baleen whales became so colossal? Scientists have a theory.

The 360-degree photos put the sanctuaries at the palm of your hand — literally.

Divers at this famous Iceland site can touch the walls of the Eurasian and North American continental plates.

Photojournalist Mike Scott hits the Florida Keys in the seventh installment of Scott's adventures, authored by Eric Douglas.

Watch as this octopus tries to grab an underwater camera from a scuba diver's hand.

The Seac F1S scuba diving fins were a ScubaLab Best Buy during the 2017 fin test.

Selected as the favorite by more divers than any other fin in our test, the Scubapro GO is the 2017 ScubaLab Testers Choice for barefoot fins.

Earthquakes are scary enough when you're on land but can you imagine being underwater when an earthquake takes place?

Ever wonder what it's like to scuba dive with sharks? Check out this footage one of our editors caught on a trip to Belize.