A male orca's best friend is his old mother.By analyzing thousands of photos in a computer program, the team found males who lived with post-reproductive mothers had 35 percent fewer tooth rake injuries compared to males who lived with breeding mothers, and 45 percent fewer than those who lived without their mothers.
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Washington , United States , America , Stephanie King , Charli Grimes , Whale Research , University Of Bristol , University Of Exeter , University College London , Current Biology , Southern Resident , Center For Whale Research , Arca , Menopause , Sons , Bite Marks ,
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