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(Reuters)
Killer Whales Hunt on Shore in Argentina

A strange form of hunting can be witnessed near the northern tip of Argentina. Orcas, also known as killer whales, have been seen launching themselves onto the shore with intentions of making a sea lion pup part of their next meal.

The orcas use sonar to hunt. They beach themselves in high tide, and allow the waves to carry them back into the sea. The method is risky, but orcas attempt to judge the waves pattern to make sure they are able to catch the next wave and return to the sea.

The rare phenomenon has been reported seven times. Each event involved orca who were members of a pod that swims along the coast of Patagonia’s Valdes Peninsula during March and April – autumn in the southern hemisphere. The season coincides with the early development of baby sea lions.

Whales stalk their prey in deep channels such as Playa Punta Norte, where sea lions breed. The young pups often learn to swim between the rocks in the channel, but only the most developed pups are able to escape from the orcas.