can reptiles be warm blooded

Are Reptiles Warm Blooded?

Reptiles are among the oldest and most diverse group of land animals in the world. But one common question continues to be asked: can reptiles be warm-blooded?

What is Warm-Bloodedness?

Warm-bloodedness, or being endothermic, is when an animal can internally regulate its own body temperature – usually by shivering, sweating and/or panting. This is in contrast to being ectothermic or “cold-blooded,” in which the animal’s body temperature is dependent on external conditions.

Types of Reptiles

Reptiles come in many different sizes, shapes and colors. Here are the main types:

  • Turtles: Turtles have a hard shell and, depending on the species, can live in water or on land, or both.
  • Lizards: Lizards come in many sizes and range from geckos to iguanas. Most live on land.
  • Snakes: Snakes are the most varied group of reptiles and come in many colors, shapes and sizes.

Can Reptiles Be Warm-Blooded?

Although reptiles are ectothermic, some species have been observed as potentially endothermic. There is evidence that certain lizards, turtles and other small reptiles have the ability to regulate their own body temperatures. However, this does not mean that all reptiles are warm-blooded, as most still rely on external sources of heat.

The result is that reptiles are mostly ectothermic, but some species can be potentially endothermic. Whether or not a species of reptile is capable of regulating their own body temperatures is dependent on the habitat they live in and the habits they have adapted to their environment.


In conclusion, reptiles cannot be considered fully warm-blooded since they mainly rely on external sources of heat. However, some species of reptiles do appear to have the ability to regulate their own body temperatures, making them potentially endothermic.

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