cold-blooded animals

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

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

Example Sentences

A new UBC study shows that climate warming can potentially make bacterial and fungal infections deadlier for cold-blooded animals like corals, insects, and fish, raising questions about the broader risks warming temperatures pose to ecosystems and biodiversity -- and potentially humans.

From Science Daily

Using statistical models, the researchers found that cold-blooded animals with bacterial infections were more likely to die when exposed to higher temperatures compared to their usual environmental conditions.

From Science Daily

"These findings suggest that climate warming may pose a greater risk to cold-blooded animals, an important part of the ecosystem," said Dr. Li.

From Science Daily

In the early 20th century, dinosaurs were considered slow-moving, "cold-blooded" animals like modern-day reptiles, relying on heat from the sun to regulate their temperature.

From Science Daily

Cold-blooded animals, including reptiles like snakes and lizards, depend on outside sources to control their temperature: For example, basking in the sun to warm up.

From Seattle Times