Alula
Alula
Small projections on the wings of birds.
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Readers' pathsAug 2026 – Oct 2026
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Origin of birds
Central question in evolutionary biology of birds.
15%
Peregrine falcon
Fastest known animal and common bird of prey.
14%
Eoalulavis
Extinct genus of birds.
9.2%
Leading-edge slat
Device increasing the lift of the wing at low speed (take-off and landing).
8.1%
Bird flight
Aerial locomotion in avian dinosaurs.
8%
Leading-edge slot
Anti-stall control surface on aircraft.
7.6%
Protopteryx
Extinct genus of birds.
7%
Flight feather
Bird feather that generates lift and thrust.
5.3%
Wing
Appendage used for flight.
4.2%
Dinosaur
Clade of reptiles.
4%
Readers come from
Share of the 627 readers arriving from another article
Hummingbird
Family of birds.
24%
Bird wing
Paired forelimb that allows birds to fly.
15%
Flight feather
Bird feather that generates lift and thrust.
12%
Winged Victory of Samothrace
Ancient Greek sculpture.
11%
Leading-edge slat
Device increasing the lift of the wing at low speed (take-off and landing).
7.5%
Enantiornithes
Extinct clade of avialan dinosaurs.
4.9%
Bird
Warm-blooded animals with wings and feathers.
4.5%
Bird anatomy
Physiological structure of birds' bodies.
4.1%
Eoalulavis
Extinct genus of birds.
3.7%
Leading-edge slot
Anti-stall control surface on aircraft.
3.5%