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cold-blooded animals

Animals, such as reptiles, fishes, and amphibians, that cannot control their body temperature and therefore become sluggish in cold weather. (Compare warm-blooded animals.)

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Read more in this article about some frequently asked questions and fun facts related to our definitions.

Read more in this article about some frequently asked questions and fun facts related to our definitions.

Note

Cold-blooded animals are often seen sunning themselves to warm up.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.