Pipkin the smallest penguin is always asking questions, but what he wants to know most of all is how high is the sky? So, he sets off to see how far up the sky

Dive deep with Gail Gibbons as she explains the mechanics and discoveries of deep-sea exploration. The surface of the moon is more familiar to us than the deep

Reprint of the original, first published in 1873.

Provides a top-to-bottom look at the ocean, from birds and waves to thermal vents and ooze.

Uses a submarine trip to the bottom of the sea to introduce various deep-sea creatures, including the angler fish, octopus, and sperm whale