The Birds & The Biebs – Polyspermy in Birds

 

There is a nest full of silliness when the three egg-heads talk about bird sperm.  It turns out bird eggs are healthier when fertilized by more that one sperm, and females can actively control it! Raj reveals the morbid source of finch seed, Jono failed the written test for sperm donation, and Joe giggles uncontrollably at a birds’ “swiss army vagina.” (also available on iTunes)

The Paper: “Polyspermy in birds: sperm numbers and embryo survival” (Hemmings & Birkhead, 2015).

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