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Every sperm is sacred

10,000 Birds

If you’re feeling particularly science-y, the full paper is here.). By studying Zebra Finches and domestic chickens, the scientists discovered that multiple sperm appear necessary for a fertilized egg to progress to the embryo stage (a process called “polyspermy”.) sperm are crucial to the development of avian life.

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Birding Shanghai in October 2022

10,000 Birds

Though admittedly, I only show this photo to quote the line of a Gary Larson cartoon : “The Bluebird of Happiness long absent from his life, Ned is visited by the Chicken of Depression.” And for the last time this year: the Blue-and-white Flycatcher. They can also learn phonetic categories ( source ).

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