Scientists have followed killer whales and noticed a curious trend: sons often sit on their mothers' necks for decades.


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Scientists have followed killer whales and noticed a curious trend: sons often sit on their mothers' necks for decades.
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Scientists have followed killer whales and noticed a curious trend: sons often sit on their mothers' necks for decades. - Killer whale, Mum, Reproduction, Repeat
Killer whale Mum Repeat Reproduction
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