Mary Batten

Introduces what belly buttons are, how they are formed, and how they differ on the people and animals who have them.

"Even in the intensely cold, windy, and dry environment of Antarctica, a wide variety of wildlife--from the massive swarms of krill in the Southern Ocean to the throngs of penguins on its icy shores-- finds ways to thrive. Some species of Antarctic fishes make a natural antifreeze that prevents their blood from freezing solid, and although no trees grow on Antarctica, a forest of giant seaweed flourishes under the sea. Antarctica's creatures are exquisitely...