What birds have wings but can't fly? Penguins Instead, these adorable animals use their flippers to swim in the deep, cold water. Meet the different species, from the Little Blue to the Emperor, and find out about their feathers, their coloring, and their habitat-as well as how they build their nests and raise their young. By the end, kids will all agree: penguins are really cool A biography on the last page introduces expert Paul Sweet, the ornithologist...