كاميرا ترصد سلوكًا مذهلًا للحيتان القاتلة لتنظيف جسمها

Transcript

00:00The word of the day is aloe kelping.

00:04Let's break it down.

00:06Take a close look at these killer whales carrying kelp in their mouths.

00:10Scientists say the whales take bull kelp from the sea floor,

00:13find a partner and roll it between their bodies.

00:16According to research published in the journal Current Biology,

00:19it's a practice among killer whales that could be a form of grooming for skin hygiene

00:23or a way to socially bond with other members of the pod.

00:26Documented via drone in the Salish Sea in the Pacific Northwest,

00:29the discovery marks the first time marine mammals have ever been seen using a tool to groom.

00:35Scientists recorded at least 30 examples of the whale on whale ritual,

00:39with some orcas seen rubbing against each other for 15 minutes at a time.

00:43They say the behavior is usually spotted in whales that are close relatives or close in age.