1001 Space Earth Nature Evolution Fossils and Prehistoric Life Dinosaurs Simple Animals Insects and Spiders Fish Amphibians Reptiles Birds Sea Mammals Land Mammals Plant Kingdom How Plants Live Unusual Plants Ecology Conservation Animal Behaviour Pets and Farm Animals History Human World Science and Technology

Choose a Page:Which fish need lights?How do fish breathe?Which is the biggest fish?How fast can fish swim?What is unusual about the seahorse?How do fish float?How did the archer fish get its name?Can fish fly?*How does a fish build a nest?*What attracts sharks to their prey?Can fish generate electricity?Which fish needs a beak?Do all fish lay eggs? How does a fish build a nest? Some fish build nests to protect their developing eggs. The male stickleback first excavates a hollow in the mud. It then builds a tubeshaped nest over it, using weeds glued together with mucus.   Previous: Back Book: 1001 Section: Nature Chapter: Fish