barbarous, ruthless, inhuman, callous, brutal, hardened, merciless, cold, dispassionate, hard-boiled, imperturbable, matter-of-fact, obdurate, pitiless, relentless, savage, unemotional, unfeeling, unmoved, uncompassionate.
What is another term for cold blooded animals?
poikilothermic animals
Cold-blooded animals are also known as poikilothermic animals. Warm-blooded animals are also known as homeothermic animals.
Why is it called cold blooded?
First off, the origin of the word. Ecto means “outer” or “outside” and therm means “heat.” Therefore, ectothermic animals are those that rely on the environment to maintain body temperature. The term “cold-blooded” implies that these animals are in a never-ending struggle to stay warm.
What’s the scientific name for warm-blooded?
Warm-bloodedness, also called Homoiothermy, also spelled Homeothermy, in animals, the ability to maintain a relatively constant internal temperature (about 37° C [99° F] for mammals, about 40° C [104° F] for birds), regardless of the environmental temperature.
Is bat a cold-blooded animals?
Like all mammals, bats are warm-blooded, meaning they maintain their body temperature internally. But unlike most mammals, bats allow their body temperature to sink to the ambient temperature when they are not active.
Is bat a cold blooded animals?
What is called warm-blooded?
Warm-blooded is an informal term referring to animal species which can maintain a body temperature higher than their environment. In particular, homeothermic species maintain a stable body temperature by regulating metabolic processes. Other species have various degrees of thermoregulation.
Is human warm-blooded?
Humans are warm blooded, meaning we can regulate our internal body temperature regardless of the environment. To keep our bodies core temperature regulated at 37ºC the process begins in the brain, the hypothalamus is responsible for releasing hormones to control temperature.
Is bat a Homeotherm?
Definition. Heterothermic animals are those that can switch between poikilothermic and homeothermic strategies. More often than not, it is used as a way to dissociate the fluctuating metabolic rates seen in some small mammals and birds (e.g. bats and hummingbirds), from those of traditional cold blooded animals.
Is Whale warm-blooded?
Whales, dolphins, seals and other marine mammals can generate their own heat and maintain a stable body temperature despite fluctuating environmental conditions. Like people, they are endothermic homeotherms—or more colloquially, “warm-blooded.”
What is the medical definition of cold blooded?
Medical Definition of cold-blooded : having a body temperature not internally regulated but approximating that of the environment : poikilothermic cold-blooded amphibians and reptiles Other Words from cold-blooded
Which is the best definition of cold blooded killer?
Technical term: poikilothermic 1. of or designating animals, as fishes and reptiles, whose blood temperature ranges from the freezing point upward, in accordance with the temperature of the surrounding medium. 2. done or acting without emotion or feeling: a cold-blooded killer.
Which is an example of a cold blooded animal?
adjective designating or pertaining to animals, as fishes and reptiles, whose blood temperature ranges from the freezing point upward, in accordance with the temperature of the surrounding medium; poikilothermic. having or showing a lack of feeling or pitya cold-blooded killing
What does it mean when a reptile is cold blooded?
Probably it is the term “cold-blooded.” Most of us have learned that one component of being a reptile or amphibian is being “cold-blooded.” And what are mammals and birds?
What is the definition of cold blooded?
Definition of cold-blooded. 1a : 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.
What does cold blooded mean?
or cold′blood′ed, adj. 1. of or designating animals, as fishes and reptiles, whose blood temperature ranges from the freezing point upward, in accordance with the temperature of the surrounding medium.
What is the definition of a cold blooded killer?
or cold·blood·ed (kōld′blŭd′ĭd) adj. 1. a. Lacking feeling or emotion: a cold-blooded killer. b. Executed without feeling or emotion: a cold-blooded crime; a cold-blooded performance of the concerto.
