Please call back later rogaine minoxidil 5 foam As Hargrove noted, Orcas are apex predators, like grizzly bears, gray wolves or African lions. They're nearly mythological creatures who hunt other large creatures of the sea (like dolphins, sea lions or even other whales) in groups. Marine biologists have learned in the recent decades that orcas may also be quite evolved, with a highly sensitized sense of family and community.