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Obligate scavenging (subsisting entirely or mainly on dead animals) is rare among vertebrates, due to the difficulty of finding enough carrion without expending too much energy. Well-known invertebrate scavengers of animal material include burying beetles and blowflies , which are obligate scavengers, and yellowjackets .
Particular Hymenoptera, such as members of the genus Trigona are obligate necrophages. [3] [11] Trigona worker bees play a similar role to the Apis genus; however, along with collecting pollen, nectar, and plant resins, Trigona workers also collect carrion from vertebrate carcasses. [3]
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]
An obligate ovivore or egg predator is an animal that feeds exclusively on eggs. [2] This is different from an egg parasite, an animal such as a parasitic wasp which grows inside the egg of another insect.
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 .
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 ...
Obligate thermophiles (also called extreme thermophiles) require such high temperatures for growth. Hyperthermophiles are particularly extreme thermophiles for which the optimal temperatures are above 80 °C (176 °F). A colony of thermophiles in the outflow of Mickey Hot Springs, Oregon, the water temperature is approximately 60 °C (140 °F).
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]