"A peep of chickens, a pride of lions, a gaggle of geese, and a crowd of people. What do they all have in common? They're populations! In Populations, Bill Nye explores how these living groups compete for food, homes, and space"--Container.

Teacher`s guide also available under Additional info tag. Originally broadcast on the television program: Bill Nye, the science guy ; English or Spanish dialogue.

1 DVD, Implementation guide (in pdf) ; Special features: Fully indexed "chapters" correlated to National Science Standards; interactive glossaries and quizzes; bonus footage of never-before-seen segments, interviews, and demos; on-disk implementation guide.