Screw-shaped bird sperm swim faster—but it comes at a cost

A study by Ph.D. student Hanna Nyborg Støstad has investigated the peculiar spiral shape of songbird sperm. Støstad compared sperm cells of 36 bird species including house sparrows and tree swallows, and found that species ...

The evolution of bird-of-paradise sex chromosomes revealed

Birds-of-paradise are a group of songbird species, and are known for their magnificent male plumage and bewildering sexual display. Now, an international collaborative study involving the University of Vienna, Zhejiang University ...

How birds learn

Songbirds can acquire new abilities both through observation and through trial and error. However, skills acquired with the latter method are more easily adapted to new situations, as scientists at ETH and the University ...

Do smart songbirds always get the girl?

If the early bird catches the worm, then does the smart songbird get the girl? That's what a researcher at Florida Atlantic University and collaborators from the University of Miami, Duke University, and the College of Charleston ...

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