All animals have their own unique ways of surviving winter’s harsh conditions. Some—like certain species of fish, birds and insects—simply move, migrating south for the warmer climate. Others are equipped with the natural insulation of fur or feathers. Many hibernate, wakening only when the weather has warmed up.
But one if the most impressive cold-season survival skills involves something that seems impossible: staying put and freezing. Here to tell us about the various species that pull off this remarkable feat each year is Jack Cover, general curator at the National Aquarium.
