An introduction to air and its components, discussing its use by humans, animals, and plants, its study by scientists, and the problem of air pollution. Includes an experiment.
Text and photographs describe less-than-pleasant and unexpected habitats and the animals that live in them, focusing on garbage cans and landfills, and discussing seagulls, rats, pigeons, flies, and cockroaches.
Text and photographs describe less-than-pleasant and unexpected habitats and the animals that live in them, focusing on streets and alleys, and discussing rats, stray cats, raccoons, cockroaches, scavenging birds, and squirrels.