Aerial drone footage shows the humpback whale (Megaptera novaeangliae) missing its iconic lobed fluke, which is responsible for propulsion while swimming. Taken by Eric Guth under NMFS permit # 24359 ...

Tail-whipping thresher sharks are giving fishermen some thrills on the ocean and plenty of steaks on the grill.

Drone captures footage of a humpback whale missing its tail fluke — an injury suspected to be from long-term entanglement in fishing gear.

A photographer has captured video footage showing a pro surfer attempting an aerial maneuver at the precise moment a whale throws its tail fluke behind the wave. The surfer is Brianna Cope of ...

A piece of rope was tangled around its tail. Two male orcas swam up to the whale out of curiosity. The whale tried to defend itself by beating its pectoral fins and tail fluke against the water.

No fluke: Whale without tail spotted off California coast A gray whale is said to have successfully migrated on an epic 12,000-mile roundtrip from its feeding grounds in Alaska to the breeding ...

This is a dolphin calf with fishing line that looks to be cutting into its tail fluke for a while, something that is preventable if we simply reel in the fishing lines rather than cut them loose ...

Because dolphins have sleek, streamlined bodies with limited space, a baby dolphin’s dorsal fin and tail fluke stay folded while in the womb.

The results from the tail fluke photos showed that the population of humpback whales in the North Pacific increased to a peak estimate of 33,488, give or take 4,455 whales, in 2012.

The Marine Mammal Stranding Center was notified last October that the same young humpback whale that washed up in Long Branch had lost its left tail fluke after a collision with a vessel.

The whale is still moving freely, but is clearly encumbered with a weight around its tail. One of the rescuers tosses a line in an attempt to dislodge the anchor from the whale’s tail fluke.