News
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AnimalsThese birds clack their wing bones together to woo mates at night
During courtship, male scissor-tailed nightjars crack their wings together to make a sharp snapping sound. It's the result of colliding arm bones.
By Jake Buehler -
PaleontologySome pterosaurs may have boasted bold iridescence
A new analysis of a 120-million-year-old fossil suggests at least one pterosaur species shimmered in iridescent greens and magentas.
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Health & MedicineA drug may help people on GLP-1 meds preserve muscle
In a clinical trial, an experimental antibody reduced lean-mass loss in people on a GLP-1 drug. Whether that improves health is unclear.
By Meghan Rosen -