Bill Nye the Science Guy answers questions about spiders, discussing their physical characteristics, web-making abilities, size, venom, and other topics.
Bill Nye the Science Guy answers questions about lakes and ponds, and leads an investigation of the plants, animals, and microscopic organisms that live in them.
Bill Nye the Science Guy provides information about fish, answering questions about how long they have lived on Earth, fish anatomy, how fish breathe, and other topics.
Bill Nye the Science Guy answers questions about reptiles and conducts an experiment that demonstrates how warm- and cold-blooded animals are affected by changes in outside temperatures.