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Gizzard of a chicken. The gizzard, also referred to as the ventriculus, gastric mill, and gigerium, is an organ found in the digestive tract of some animals, including archosaurs (birds and other dinosaurs, crocodiles, alligators, pterosaurs), earthworms, some gastropods, some fish, and some crustaceans.
The chicken (Gallus gallus domesticus) is a large and round short-winged bird, domesticated from the red junglefowl of Southeast Asia around 8,000 years ago. Most chickens are raised for food, providing meat and eggs; others are kept as pets [1] or for cockfighting.
This summer's blockbuster Jurassic World is terrifying audiences around the world and it's also spurring an interesting debate -- Can dinosaurs really be brought back from extinction?
Galliformes / ˌ ɡ æ l ɪ ˈ f ɔːr m iː z / is an order of heavy-bodied ground-feeding birds that includes turkeys, chickens, quail, and other landfowl.Gallinaceous birds, as they are called, are important in their ecosystems as seed dispersers and predators, and are often reared by humans for their meat and eggs, or hunted as game birds.
Dinosaurs were long gone by the Pleistocene, replaced by a variety of huge mammals. Many of those mammals went extinct as the climate warmed and humans altered the landscape, while others survived ...
The dinosaur — Psittacosaurus lujiatunensis — was about as big as a medium-sized dog with a parrotlike beak. This species was a plant eater, but other dinosaurs were meat eaters or ate both.
Many presentations still describe Compsognathus as "chicken-sized" dinosaurs because of the size of the German specimen, which is now believed to be a juvenile. Compsognathus longipes is one of the few dinosaur species whose diet is known with certainty: the remains of small, agile lizards are preserved in the bellies of both specimens. Teeth ...
Domesticated birds raised for meat and eggs, called poultry, are the largest source of animal protein eaten by humans; in 2003, 76 million tons of poultry and 61 million tons of eggs were produced worldwide. [288] Chickens account for much of human poultry consumption, though domesticated turkeys, ducks, and geese are also relatively common. [289]