This video shows a large group of fish swimming together in clear blue water near a coral reef. Their synchronized movement ...

When Becky O’Brien dangles herring over a tank of over a dozen swimming sharks, it only takes seconds for a zebra shark to ...

Warm water could bring exotic sea life, but also kill kelp, and more frequent storms could spell trouble for the region ...

One of the world's rarest whales, the Rice's whale, is in the way of the Trump administration's desire to expand oil and gas ...

A long-term project to remove or modify dams may clear the way for endangered wild Atlantic salmon to swim freely up to the Sandy River. But it faces opposition from business and lawmakers.

Warm water could bring exotic sea life, but also kill kelp, and more frequent storms could spell trouble for the region ...

What did ancient people first think upon finding dead seahorses washed up on shore? Were they baby dragons? Enchanted ponies? Cousins of mythological ...

Just an hourlong ferry’s ride from the coast of southern California is the only place in the world you can see what might ...

Small enough to fit in the palm of your hand, newly hatched sea turtles emerged on a Gabonese beach to embark on the ...

Once heavily depleted, the waters off British Columbia now teem with humpbacks and orcas, seals and sea otters — an extraordinary comeback revealed on expert-led tours ...