“We were amazed when we first noticed this behavior,” said Michael Weiss, research director at the Center for Whale Research in the U.S. state of Washington. What started as a puzzling observation in drone footage revealed something unexpected: killer whales are making tools from a type of seaweed called kelp. The behavior, dubbed “allokelping” (kelping … Continue reading Orcas discovered making tools from seaweed to ‘massage’ each other