Dolphins

A stock image of an Indo-Pacific dolphin swimming (not the individual responsible for the recent attacks).

Orcas off the coasts of Spain and Portugal may be using boats as targets to practice hunting their favorite food, Atlantic bluefin tuna.

Coastguards had to tow a 40-foot-long sailboat back to port after two young orcas severely damaged the boat's rudder near Guilvinec in the French region of Brittany.

Dozens of long-finned pilot whales have beached and died on Sanday in the Orkney Islands, Scotland, in the biggest mass stranding the country has seen since 1995.

Records of orcas hunting sharks in the Gulf of California are on the rise, as experts say we may have underestimated how much this happens.

Researchers snapped a photo of a baby Irrawaddy dolphin in a group of Indo-Pacific humpback dolphins swimming off the coast of Cambodia.

Orcas off the coast of Iberia are spending less time hunting and more time exploring new games thanks to the recent recovery of their favorite prey, Atlantic bluefin tuna.

A group of orcas known to attack boats in southwest Europe have sunk a 50-foot sailing yacht in the Strait of Gibraltar after ripping open its hull. It is the fifth time these killer whales have sent a ship to the seafloor in the last three years.

Orcas that attack and sink boats in southwestern Europe have been spotted circling a vessel in Spain, hundreds of miles from where they should currently be. And scientists can't explain why.

Rescuers have been trying to coax a 2-year-old orca from a lagoon off Vancouver Island and back to the ocean for five days, but they only have a 30-minute window every day when waters are high.