They do this by "burning" fuel/food in their cells.
they generate their own body heat.
through high metabolism
They are warmblooded (meaning they generate their own body heat).
it depends on the animal
a platypus is a warmblooded animal because it is a mammal and like most mammals,they are warmblooded.
Any warmblooded animal like mammals. Cold-blooded animals rely on surrounding heat to heat their body, that's why you see lizards laying on the rocks in the sun.
endothermal
Reptiles are coldblooded animals.
A penguin is an endothermic animal, meaning it can regulate its own body temperature internally. Penguins have a variety of adaptations that help them survive in cold climates, including a layer of insulating feathers and a high metabolic rate to generate body heat.
A House Sparrow is a Warm-blooded animal
warmblooded
A warmblooded animal that maintains a constant body temperature.