This video says about itself:
Rare Footage of a Sperm Whale Hunting a Squid
For decades, scientists and filmmakers have been trying to capture footage of the world’s largest active predator hunting 3,000 feet below the surface, deep in the dark depths of the ocean. Witness a sperm whale echolocate its prey with intense clicking and then successfully hunt down what is believed to be a squid.
Dear Kitty. Some blog 