アメリカ自然史博物館のインスタグラム(amnh) - 12月2日 12時34分

Let the polar bear (Ursus maritimus) greet you into the month of December! A close relative of the brown bear, the polar bear has evolved specialized features to thrive in the Arctic. For example, females produce fatty milk that boosts their cubs’ growth, energy, and fat insulation, which helps the baby bears survive Arctic temperatures. Beyond rich milk, other advantageous traits include water-repelling guard hairs and dense underfur to ward off a chill after swimming between ice floes and broad feet to help distribute their weight on the ice and serve as paddles to propel their massive bodies through water.
Photo: Pintari

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する