Knowra Aves Aves Aves is the vertebrate group containing living birds and their extinct relatives. Its members share a lineage of feathered, warm-blooded theropod dinosaurs.
Feather : A feather is a lightweight keratin structure that grows from a bird’s skin and can provide insulation, display, or aerodynamic surfaces. Feathers are a defining feature of birds, though they evolved before flight.
Maniraptora : Maniraptora is a theropod dinosaur group that includes birds and several closely related feathered dinosaur lineages. Bird origins lie within this branch of theropod evolution.
Bird flight : Bird flight is powered aerial locomotion produced by wings, muscles, and coordinated control of lift and thrust. It is a prominent avian capability, but not a trait of every living bird.
Avian taxonomy : Avian taxonomy is the scientific classification of birds into named groups based on evolutionary relationships and shared traits. It organizes living Aves and reflects changing evidence about bird ancestry.
羽? : A bird skeleton is a lightweight, specialized framework of bones adapted to support flight or other forms of locomotion. Its fused bones and distinctive joints help identify major bird adaptations.
Anchiornis : Anchiornis is a small feathered dinosaur from the Late Jurassic of China, known from exceptionally preserved fossils. Its preserved feathers illuminate the diversity of early feathered relatives.
Alula : The alula is a small group of feathers attached to the first digit of a bird’s wing. It helps maintain controlled airflow over the wing at low speeds.
Phylogenetics : Phylogenetics is the study of evolutionary relationships among organisms, often represented as branching trees. DNA and fossil data help resolve relationships within Aves.
Theropoda : Theropoda is a diverse dinosaur group that includes birds and their closest extinct relatives. Aves belongs within this dinosaur lineage, rather than standing apart from dinosaurs.
Confuciusornis : Confuciusornis is an Early Cretaceous bird from China, among the earliest known birds with a toothless beak. It shows that early bird lineages diversified beyond Archaeopteryx-like forms.
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