Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

In the vast and colorful—and sometimes terrifying—world of marine life, few creatures are as captivating as the Costasiella kuroshimae. Affectionately known as the "leaf sheep" or the "Shaun-the-sheep ...

The ocean is full of incredible surprises, including the darkest, deepest trenches that humans have barely explored. And inside the sea, among these places, live certain creatures with traits that ...

Dive to places uninhabitable by humans and encounter regal whales and colorful reef life. Ocean Animals features the world’s most charismatic animals that inhabit a realm humans can only fleetingly ...

The species help harness carbon dioxide, a greenhouse gas, deep in the ocean, but much is still unknown about this region and its fascinating inhabitants. The terrifyingly toothy Pacific viperfish, ...

Scientists in Singapore found a sea animal with 96 arms and discovered a new species, a study said. Photo shows a representative beach in Singapore. Photo from Christoph Theisinger via Unsplash ...

While it is filled with lots of beautiful creatures and things to explore, the ocean also houses deadly creatures capable of striking fear into even the bravest of hearts and causing harm. The great ...

Rebecca Olive receives funding from The Australian Research Council. Every summer, many Australians head to the ocean to swim, surf, sail, kayak, and walk along the beach. But humans are not alone ...