SF Zoo – Penguin Candling 2018

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Check out how we find out if penguin eggs are fertile!

1 thought on “SF Zoo – Penguin Candling 2018

  1. DB Bourgeois

    @SFZoo When returning the eggs after candling, how do you tell which egg belongs in which nest? Or does it matter to the parents asl long as there's an egg in the nest? Thanks. ~db

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