What Does ‘cold Blood’ Mean?

The term Cold Blood is used to describe an account of a gruesome crime, principally in case of a brutal killing or a murder. Cold blood is a word usually picked to describe a horrific execution of innocent victim, so drastically unsettling that it makes it doubtful to imagine the perpetrator to be a human being.

Cold Blood is also origin of the term 'Cold Blooded' addressed to animals like reptiles, fish or other amphibians and spiders, which were said to have cold blood due to a belief that these animals were incapable of maintaining their body temperatures as per varying environment. However, with time usage of this term has lessened and more so, after it was discovered that these animals certainly have an ability to adapt their body temperatures to match their habitat by borrowing under soil to avoid heat, using sunlight, using gills and fins to absorb and feel heat or changes in surroundings and then match the body temperature accordingly.

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