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Warmth

Alligator Body Temperature

Heat Source

Heat Energy (Sunlight)

• energy from sun creates heat

Pond/Lake

• float in the water with nose above
• lets water freeze around them and they stay there until it melts (waits for warm temperature)

Heat in Insulated Water

Keeps noses Above Water

• so they can breath

Stay Dormant

Burrows

• dig or find holes to stay in

Heat in Insulated Ground

Come Up for Air

Brumation

• Similar to hibernation except they don't sleep
• They just move slower and seek warmth

Metabolism

Movement

Body Heat

Thermoregulation

Homeostasis

Dog Body Temperature

Cold Temperatures

Arrector Pili Muscles Contract

Piloerection

• similar to goosebumps where your hair stands up
• this allows body heat to stay preserved in the fur

Skeletal muscle activity

Shivers

• If a dog becomes cold they may shiver
• Most short-haired dogs are not able to create a double coat. So they are susceptible to becoming cold easier
• Skinny dogs are also likely to get cold easily because of their lack of fat to keep them insulated

Friction

Curl Up

Tail, nose, muzzle and front legs

Allows them to breath in trapped heated air

Paws Layered with Fat

Insulation

• they are able to walk on cold surfaces and it won't lower their temperature

Double Coat Forms