Blowing bubbles helps resting sperm whales avoid floating to the surface
[↧](https://t.co/UKXGEhr7qU) [↧](h
 [↧](h](https://www.reuters.com/resizer/v2/73J62TVYUJJ7NMIIQU7VGZPOM4.jpg?auth=0a8ca35b6e3f5c661e0a43051e086a3662e6f869ed490f131f567e9415d52e63&height=1005&width=1920&quality=80&smart=true)
Blowing bubbles helps resting sperm whales avoid floating to the surface
[↧](https://t.co/UKXGEhr7qU) [↧](https://t.co/UKXGEhr7qU)
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