Coral reef halos, visible from satellites, can indicate reef health by reflecting predator presence and coral layout.

In coral reefs throughout the world, visually striking bands of bare sand surrounding reefs are often visible in satellite ...

Dusky sharks can grow to 4 meters (13 feet) long and weigh about 350 kilograms (750 pounds). Sandbar sharks are smaller, growing to about 2.5 meters (8 feet) and 100 kilograms (220 pounds).

The Sharks players have had a roasting from their fans after a lacklustre performance against Edinburgh last week, but there will be big smiles on the dials of at least two of them. Brothers ...

The Southport Sharks and Gold Coast Suns are set to battle it out this weekend for the Mackenzie Cup. Check out our in-depth preview of both teams including the players to watch, biggest opposing ...

It was all the blood in the water the Sharks needed to start circling their opposition early on, notching back-to-back tries through the middle for an early 12-0 lead. A nifty short pass from ...

The shark, which is not tagged or tracked, has since proven elusive, but authorities are urging caution as search efforts continue. Shark Watch SA said that drone surveillance was ongoing but the ...

It wasn’t a performance they were proud of, but the Sharks players said they’d take the win over Edinburgh in any form it came. They secured it courtesy of a scrappy, last-minute, one-point ...

ATLANTIC CITY, N.J. (WPVI) -- The Sharks took a bite out of a South Jersey business on Friday night. The owners of Mad Mutz mozzarella sticks brought their tasty snack to ABC's Shark Tank during ...

It's the only place in the world where adult male and female whale sharks are known to regularly gather in roughly equal numbers. (AP video by Maria Cheng/Sharon Johnson)(AP produced by Javier Arciga) ...