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Cold-bloodedness, the state of having a variable body temperature that is usually only slightly higher than the environmental temperature. This state distinguishes fishes, amphibians, reptiles, and invertebrate animals from warm-blooded, or homoiothermic, animals (birds and mammals).
1. a. : done or acting without consideration, compunction, or clemency. cold-blooded murder. b. : matter-of-fact, emotionless. a cold-blooded assessment. 2. : having cold blood. specifically : having a body temperature not internally regulated but approximating that of the environment. 3. or coldblood. ˈkōl (d)-ˈbləd.
Mar 5, 2024 · Pros and Cons. There are both advantages and disadvantages to being ectothermic or cold-blooded: Pros: Lower energy requirement as they don’t need to produce heat internally. Can survive long periods without food. Cons: Less active in cooler temperatures. Limited geographical distribution, especially in colder regions.
Warm-blooded animals have the ability to regulate their body’s internal temperatures, but animals that are cold blooded are not so lucky. They are forced to rely on the outside environment to control their internal temperature, which causes their internal temp to fluctuate depending on the climate.
Apr 15, 2023 · 1. Shark. Most sharks are cold-blooded creatures, and their body temperature will match the water. The term cold-blooded can be misleading since some sharks live in warmer water. Sharks have a complicated vascular network throughout the body. The system can carry oxygen throughout the body.
Dec 23, 2019 · On the other hand, cold-blooded animals are unable to maintain constant body temperature. They rely mainly on the external environment for heat, which means that their body temperature fluctuates based on external temperatures.
Cold-bloodedness generally refers to three separate areas of thermoregulation. Ectothermy refers to control of an animal's temperature through external means (Greek: ecto = "outside," therm = "heat"), such as the sun, or flowing air/water. For more on this, see below.
