I didn't know that

Gives fun facts about birds--how they fly, feed, hunt, and look after their young.

Explores volcanoes on the ground, under the sea, and in space, discussing their formation, eruptions, and lava and ash.

Gives lots of facts about arachnids, especially spiders, such as how they make webs, hunt, communicate, look after their young, and defend themselves.

Presents facts about the appearance, size, and behavior of dinosaurs and other prehistoric reptiles.

Explores early navigation and shipbuilding and surveys the development of boats from Greek rowboats to the cruise ships of today.