Orcas spotted using seaweed to groom each other

Breakthroughs, discoveries, and DIY tips sent every weekday. Orca whales (Orcinus orca) are among the most fearsome apex predators in the ocean. One well-studied group of orcas living between Washington State and British Columbia now has a new skill to add to its repertoire–tool manufacturing and use. The whales create tools from kelp and appear to use them to help groom one another. The findings are detailed in a study published June 23 in the Cell Press journal Current Biology.