Scientists filmed orcas using seaweed to groom each other, showing tool use.

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of orcas. ......

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of orcas. ......

Orcas have been filmed using kelp as a tool to massage each other ......

Orcas have been filmed using kelp as a tool to massage each other ......

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known identification of “tool”...

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known identification of “tool”...

New research...

New research...

Behavior in orca population off coast of US and Canada captured by scientists using drone observation