The scientific question of within which larger group of animals birds evolved has traditionally been called the "origin of birds". The present scientific...

The Origin of Birds is an early synopsis of bird evolution written in 1926 by Gerhard Heilmann, a Danish artist and amateur zoologist. The book was born...

elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including...

The evolution of birds began in the Jurassic Period, with the earliest birds derived from a clade of theropod dinosaurs named Paraves. Birds are categorized...

Birds of prey or predatory birds, also known as raptors, are hypercarnivorous bird species that actively hunt and feed on other vertebrates (mainly mammals...

The Origin of Birds is a book by Australian palaeontologist John A. Long and Peter Schouten connecting feathered dinosaurs with the origin of birds. It...

order for birds to balance these forces, certain physical characteristics are required. Asymmetrical wing feathers, found on all flying birds with the...

debates about the origin and evolution of birds. Some scientists see it as a semi-arboreal climbing animal, following the idea that birds evolved from tree-dwelling...

be divided into avian dinosaurs—birds—and the extinct non-avian dinosaurs, which are all dinosaurs other than birds. Dinosaurs are varied from taxonomic...

of Birds, The Origin and Evolution of Birds, and Riddle of the Feathered Dragons. Feduccia opposes the overwhelming scientific consensus that birds originated...