Describes a variety of animals who help people with disabilities, including dolphins who assist people with paralysis and a seeing-eye horse.

Describes four animal heroes: Ginny, a dog who helps cats; Scarlett, a cat who rescued her kittens from fire; Lulu, a pig who found help for her ill owner; and Dorado, a guide dog who led his owner out of the collapsing World Trade Center on September 11, 2001.

Explains how astronauts train, what they experience in space, how they perform their jobs, and other related topics.