ナショナルジオグラフィックのインスタグラム(natgeo) - 2月21日 01時09分

Photo by @ronan_donovan | On the Antarctic Peninsula, two Adélie penguins crane their necks to inspect this strange two-legged visitor. I've come with all sorts of ridiculousness draped over my body: a wool hat my mother knit; five layers that are a mix of plastic fibers with the same feathery down that keeps penguins warm; plastic fiber gloves; and finally, rubber boots. And this is the warm season! Penguins have one incredible suit made out of materials fertilized by the landscape in which they live. A. Mazing. I'm always so curious how this works (and hugely jealous they can adjust to any weather in seconds). Take their feet, for example. They'll force blood into their feet when they're on land in order to cool off, and they'll constrict the blood flow to their feet when they're in water to keep warm: countercurrent heat exchange. Nice one, nature. So you'll see pink to red to white colored toes in this series. Hot colored feet means it's a hot penguin! Follow @ronan_donovan for more stories and images from the wild. #antarctica @natgeoexpeditions #penguin #ocean #wildlife

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