Scientists are perplexed by humpback whales — typically solitary creatures — that have been seen coming together in groups as large as 200 off the coast of South Africa. Confused, yes. But some scientists do have theories on why these gentle giants are hanging out in huge groups in the Southern Hemisphere when they typically migrate north. Some say the humpbacks are staying in southern waters to eat, while others suggest that we’re just noticing this behavior now because the population is growing. Our theory? Mom and Dad were out for the weekend and one slick whale decided to throw a party.