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.
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.
They don't. That is why they hibernate and lay out in the sun.
"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.
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
Reptiles are cold-blooded, which means that their body temperature is controlled by their environment. If they are too cold, they will seek a place in the sun or near something warm, so that they can raise their body temperature. If they are too hot, they will seek shade.
sunbathing
Reptiles are ectotherms and cannot raise their body temperature above that of the environment.