• protist@retrofed.com
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      14 hours ago

      When resources are scarce, birds will literally push the weakest chick out of the nest to increase the survival chance of the rest. They’ll keep going too, and kill them all if they have to

      • FuglyDuck@lemmy.world
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        13 hours ago

        Loads of mammals will do that.

        Bears, for example.

        Hell. Some seals just leave their kids on the ice.

        Possums are so smooth brained their kids fall off and mum just keeps the bus rolling. Tasmanian devils, too.

        And hippos just forget their kiddos are even there and trample them.

        And that’s not even mentioning the crazy shit humans get up to