They do eat giant squid on occasion, but most of what sperm whales pursue is relatively small and overmatched. With their clicks, sperm whales can detect a squid less than a foot long more than a mile ...

Sperm whales are among the most extreme predators on Earth, diving more than 2,000 meters into the deep ocean to hunt giant squid in complete darkness. They can remain underwater for over 90 minutes, ...