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cold-blooded

Definition

Cold-blooded animals are animals that cannot regulate their body temperature internally. Instead, their body temperature changes with the temperature of their environment.

Some examples of cold-blooded animals include:

  • Reptiles: Snakes, lizards, turtles, and crocodiles are all cold-blooded animals.
  • Fish: Most fish are cold-blooded animals.
  • Amphibians: Frogs, toads, and salamanders are all cold-blooded animals.

Cold-blooded animals have a number of adaptations that help them to survive in their environment. For example, they often have thick skin that helps to keep them warm in cold weather. They may also be able to hibernate, which means that they can slow down their metabolism and reduce their body temperature to survive in cold weather.

Cold-blooded animals are often seen as being less active than warm-blooded animals. However, this is not always the case. Some cold-blooded animals, such as snakes, can be very active.

Imagine that you are a lizard. You live in a hot desert. Your body temperature changes with the temperature of your environment. If it gets too hot, you will try to find a cooler place to stay. If it gets too cold, you may hibernate. In the same way, cold-blooded animals have to adapt to the temperature of their environment. They cannot regulate their body temperature internally, so they have to find ways to stay warm or cool.

How can the word be used?

The snake was a cold-blooded creature.

cold-blooded

Different forms of the word

Adjective:

Cold-blooded: having a body temperature that changes with the temperature of the environment.

Cold-bloodedly: in a cold-blooded manner.

Noun:

Cold-bloodedness: the state of being cold-blooded.

Etymology

The word "cold-blooded" is made up of two words: "cold" and "blooded".

Cold: This word comes from the Old English word "cald", which also means "cold".

Blooded: This word comes from the Old English word "blōd", which also means "blood".

Question

What animals are cold-blooded?