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...

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...

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

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

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

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

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...

Bird flight is the primary mode of locomotion used by most bird species in which birds take off and fly. Flight assists birds with feeding, breeding,...

and include the use of bird liming for perching birds, mist nets for woodland birds, cannon netting for open-area flocking birds, the bal-chatri trap...

origin of birds. Researchers Haubold and Buffetaut believed that the structures were long, modified scales attached in pairs to the lateral walls of the...

Birds Aren't Real is a satirical conspiracy theory which posits that birds are actually drones operated by the United States government to spy on American...

artistic depictions of Archaeopteryx, Proavis and other early bird relatives apart from writing the 1926 book The Origin of Birds, a pioneering and influential...

Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight. Birds have a light skeletal system...

by year List of fossil bird genera List of Late Quaternary prehistoric bird species Lists of extinct species Origin of birds Butchart, Stuart H. M.;...

modern birds before the origin of flight. In many cases, the physiological condition of the birds (especially males) is indicated by the quality of their...

The origin of language, its relationship with human evolution, and its consequences have been subjects of study for centuries. Scholars wishing to study...

that birds were descendants of dinosaurs. He cited skeletal similarities, particularly among dinosaurs, the "first bird"—Archaeopteryx—and modern birds. However...

On the Origin of Species (or, more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle...

all bird species. Sometimes known as perching birds, passerines generally have an anisodactyl arrangement of their toes (three pointing forward and one back)...

book The Origin of Birds (1926). Prior to Ostrom's work, the development of birds was generally believed to have split off early on from that of dinosaurs...

wings of modern birds are used primarily for flight, though they are adapted for other purposes in certain groups. For example, aquatic birds such as...

Avialae ("bird wings") is a clade containing the only living dinosaurs, the birds, and their closest relatives. It is usually defined as all theropod...

non-avian theropod dinosaurs to birds. The term has also been used by defenders of the thecodontian origin of birds. The term "Proavis" was first coined...

Avemetatarsalia (meaning "bird metatarsals") is a clade of diapsid reptiles containing all archosaurs more closely related to birds than to crocodilians....

its characters, Angry Birds Toons, a televised animated series, and two films; The Angry Birds Movie and its sequel The Angry Birds Movie 2, with a third...

similarities between the forefeet of Deinonychus and that of birds, an observation which led him to revive the hypothesis that birds are descended from dinosaurs...

which traditionally exclude birds, the cladistic sense of the term includes all living and extinct relatives of birds and crocodilians such as non-avian...