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An ectotherm (from Ancient Greek ἐκτός (ektós) ' outside ' and θερμός (thermós) ' heat '), more commonly referred to as a "cold-blooded animal", [1] is an animal in which internal physiological sources of heat, such as blood, are of relatively small or of quite negligible importance in controlling body temperature. [2]
Cold-blooded is an informal term for one or more of a group of characteristics that determine an animal's thermophysiology. These include: Ectothermy, controlling body temperature through external processes, such as by basking in the sun; Poikilothermy, the ability of an organism to function over a wide internal temperature range
Ruthless, cold-blooded, and treacherous. Considers himself the most sophisticated and handsome of Decepticons. Believes Decepticons should rely more on guile and speed rather than brute force to defeat Autobots. Fastest flyer of the group, can reach Mach 2.8 and an altitude of 52 miles.
Unlike pure-blooded Underlanders, he has green eyes and black hair, but retains their pale skin. He lives with his father and a hisser named Frill in the Jungle until their deaths, after which he becomes a sort of younger brother to Luxa. [5] Hazard is gifted with languages.
Almost all modern animals that walk upright are warm-blooded, and dinosaurs walked upright. The hearts of warm-blooded animals can pump much more effectively than the hearts of cold-blooded animals. Therefore, the giant Brachiosaurus must have had the type of heart associated with warm-blooded animals in order to pump blood up to its head.
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Cold-blooded animals are often limited by external temperatures, which can affect their ability to hunt, escape predators, and carry out other essential activities. Homeothermy could have provided a selective advantage by allowing animals to be active for longer periods of time, increasing their chances of survival.
American staghounds have been known by various names including the "Longdog of the Prairie" and the "American lurcher"; one version is referred to as the "Cold-Blooded Greyhound", these dogs tend to be smooth-coated animals that resemble large Greyhounds, with Greyhounds being the predominant breed in their ancestry and other sighthound blood ...