With more than 16 Emmys® to its credit and legions of fans, it's easy to see why the Bill Nye the Science Guy Series is one of the most popular educational series of all time. Beloved by teachers and students alike, Bill Nye and his unique brand of Way Cool Science make complex science principles accessible for all learners. In Populations, Bill uses a peep of chickens, a pride of lions, a gaggle of geese, and a crowd of people to prove that they all have one thing in common they're all populations! Bill explores how these living groups compete for food, homes, and space. Correlated to National Science Education Standards for grades 4-8, this Classroom Edition DVD includes Public Performance Rights, exclusive interviews with Way Cool Scientists, and printable educator's guide complete with assessment tool.