Some baby penguins are bom atheery cold South Pole during the longvinter,when it is dark for many,hany days.As soon as the egg haseen laid,the mother penguin walkack to the ocean.The father penguintays and balances the egg on hisfeet.A flap on his belly keeps theegg warm.He waits until the motheA penguin returns,which is about thesame time that the egghatches.Shefeeds the gray fluffy baby penguirfrom her beak.Now it's the fatherpenguin's turn to look for food.The penguin's feathers are very tinyand close together all over its body,which helps keep it warm.When it swims,its light-colored bellyand dark-colored back help hide it.from enemies.From underneath in thewater,its light-colored belly makesit hard for the leopard seal(海豹)to see it. Fro m above,its dark backlooks like the dark water,helping tohide it from big hunting birds.One kind of penguin makes its nestout of rocks. Another lays one big eggand one little one. But only the bigone hatches into a chick.So no oneknows why the penguin lays the litleegg.