Frequent question: What adaptations do polar bears have to help them survive?

thick layers of fat and fur – for insulation against the cold. a small surface area to volume ratio – to minimise heat loss. a greasy coat that sheds water after swimming – to help reduce heat loss. large feet – to distribute their load and increase grip on the ice.

What adaptations do polar bears have to keep warm?

Thermoregulation. Body temperature, which is normally 37°C (98.6°F), is maintained through a thick layer of fur, a tough hide, and an insulating fat layer (up to 11 cm or 4.5 in. thick). This excellent insulation keeps a polar bear warm even when air temperatures drop to -37°C (-34°F).

What are 5 adaptations that polar bears have?

Their adaptations include:

  • a white appearance – as camouflage from prey on the snow and ice.
  • thick layers of fat and fur – for insulation against the cold.
  • a small surface area to volume ratio – to minimise heat loss.
  • a greasy coat that sheds water after swimming – to help reduce heat loss.

Why do polar bears eat fat?

Food Intake

A polar bear generally eats this much only when its energy demands are high. … of fat per day to obtain enough energy to survive. A ringed seal weighing 55 kg (121 lb.) could provide up to eight days of energy for a polar bear.

Do polar bears drink?

It might come as a surprise that polar bears rarely drink water. … Polar bears get their water from the chemical reaction that breaks down fat. This is why a polar bear’s diet is high in fat but low in protein. For example, when they hunt seals, polar bears will eat the blubber, but leave the rest behind for scavengers.

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