What are poikilothermic animals?

Thermoregulation:

It refers to the ability of an organism to keep its body temperature within specified limits, even when the ambient temperature is significantly different.

Poikilothermic animals:

1. They are also called cold-blooded animals.
2. Their body temperature is affected by the ambient temperature.
3. They are unable to control their body temperature.
4. Example - Crocodiles, Frogs, Snakes, Lizards, etc.