From sea turtles to Hawaiian hawks, these rare animals highlight the unique wildlife of Hawaii and where travelers may spot them in the islands.

Experience the only living coral reef in the continental U.S. at this historic state park.

An avian flu outbreak at California's Año Nuevo State Park is spreading across the Central Coast, infecting elephant seals, a ...

Across the Indonesian islands in the Coral Triangle, daily life remains shaped by the sea. See the lives of the islanders through a photographer's lens.

The chain catshark may look like any other shark in daylight, but under blue light, its skin glows neon green. Here’s a breakdown of this remarkable adaptation.

Strolling a familiar beach and stumbling upon a relic from the age of dinosaurs sounds like pure fantasy, yet that is exactly what happened on England’s west coast. A stretch of shoreline below ...

Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of sharks.

Many insects live in fresh water, or close to the sea in salt marsh and beach habitats. There are also several species of water striders in the genus Halobates, which live on the ocean’s surface, far ...

Scientists are tracking unseasonably large sargassum mats in the Atlantic. Where it will land, if at all, depends on winds and currents.

Tiny blue dragon sea slugs are washing up along Texas beaches as spring winds push marine life ashore. Experts warn the ...