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Scavenger is an alteration of scavager, from Middle English skawager meaning "customs collector", ... which are obligate scavengers, and yellowjackets. Fly larvae are ...
Remora are specially adapted to attach themselves to larger fish (or other animals, in this case a sea turtle) that provide locomotion and food.. Commensalism is a long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed. [1]
This usually involves leg bones in graduated sizes from different individuals ranging in age from embryos to adults. Horner also revitalized the contested theory that Tyrannosaurus rex was an obligate scavenger, rather than a predatory killer. While this theory has been widely discussed by the popular press, it has never been a major research ...
Theropod dinosaurs such as Tyrannosaurus rex that existed during the late Cretaceous, although not mammals, were obligate carnivores. Large hypercarnivores evolved frequently in the fossil record , often in response to an ecological opportunity afforded by the decline or extinction of previously dominant hypercarnivorous taxa .
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The debate about whether Tyrannosaurus was an active predator or a pure scavenger, however, is as old as the debate about its locomotion.Lambe (1917) described a good skeleton of Tyrannosaurus ' s close relative Gorgosaurus and concluded that it and therefore also Tyrannosaurus was a pure scavenger, because the Gorgosaurus teeth showed hardly any wear. [14]
The turkey vulture is a scavenger and feeds almost exclusively on carrion. [3] It finds its food using its keen eyes and sense of smell, flying low enough to detect the gasses produced by the early stages of decay in dead animals. [3] In flight, it uses thermals to move through the air, flapping its wings infrequently. It roosts in large ...
Valley of the T. rex is a Discovery Channel documentary, featuring paleontologist Jack Horner, that aired on September 10, 2001.The program shows Horner with his digging team as they travel to Hell Creek Formation in search for dinosaur fossils, while also following Horner as he presents his view of the theropod dinosaur Tyrannosaurus rex as a scavenger rather than a predator, as it is often ...