Below freezing point how animal get their body warm?

Animals that live in below freezing point temperatures get their bodies to become warm by:

-Eating food that would generate energy, or eat a lot of high energy food

-The way they behave (Behavioral adaptation)

-Be very well insulated (a lot of stored fat and externally with fur)

- Sea animals never leave the scene

The animals that live in below freezing temperatures are mostly warm-blooded.

d. the weight of the book

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