Flightless birds were more common before human-driven extinctions – new study
Evolution towards flightlessness has been much more common through history than scientists once thought.
Tim Blackburn, Professor of Invasion Biology , UCL •
conversation
Dec. 2, 2020 • ~6 min
Dec. 2, 2020 • ~6 min
birds extinction bird-flight dodo moa
How do geese know how to fly south for the winter?
Geese honk loudly and point their bills toward the sky when they're ready to start the migration. Here's how they know it's time, how they navigate and how they conserve energy on the grueling trip.
Tom Langen, Professor of Biology, Clarkson University •
conversation
Nov. 16, 2020 • ~8 min
Nov. 16, 2020 • ~8 min
birds migration ornithology curious-kids curious-kids-us feathers migratory-birds bird-migration animal-navigation flying geese magnetic-compass drafting fall magnetic-north bird-flight
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