Reptiles' body temperature fluctuates according to their surrounding air temperature. In cold temperatures (pre-dawn) snakes will be torpid, and only active once the rising sun has warmed the snake up.
to maintain a steady body temperature
The skin is the organ of the body that helps people keep a steady temperature. When it is cold the fur on the body will help keep the body warm.
Thermoregulation
It is not steady, so to get it to the right temprature, the amphibian sits in the sun.
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Birds are warm-blooded/endothermic. Reptiles are not. They are cold-blooded/ectothermic. Reptiles such as snakes and terrapins must bathe in the sun to get their body temperature to an optimal. Birds can control their body temperature internally.
it is an animal that's body temperature varies according to the temperature of its surroundings mainly fish and reptiles, it does not apply to birds or mammals as they are able to regulate there body temperature, were as reptiles for example will be the temperature of there surrounding this is why they have to bask in the sun to get warm.
Burmese pythons are reptiles, and therefore cannot regulate their body temperature as we can. Their body temperature depends entirely on their environment.
Fish and reptiles both regulate their body temperature behaviorally by going to areas where the temperature fits their biochemical needs, eg. sunning on rocks to raise temperature, etc. Some fish and reptiles also hibernate when temperatures get too cold.
"Homeotherms" maintain a steady body temperature and are warm-blooded, as opposed to "Poikilotherms" which are cold-blooded.An example of a homeotherm is a Lion, an example of a poikilotherm is a Crocodile.
They don't. That is why they hibernate and lay out in the sun.
Reptiles are poikilothermic, poikilothermic means that they can not regulate heat internally.This is why they are cold blooded and need to bask in the sun regularly to maintain body temperature