Using tools helps sea otters survive as the ocean changes and food disappears - NPR

1. Using tools helps sea otters survive as the ocean changes and food disappears  NPR
2. Sea otters use tools to open hard-shelled prey, saving their teeth, research reveals  The Guardian
3. In California, otters are turning to tools to eat prey in Monterey Bay  The Hill
4. Sea otters get more prey and reduce tooth damage using tools  Reuters
5. Otters, Especially Females, Use Tools To Survive a Changing World  The University of Texas at Austin

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