A visual encyclopedia of natural science, including ecology in general and in specific environments, as well as the impact of people on different habitats.
A visual encyclopedia of living things on Earth, including plants, animals, and humans, particularly looking at animal survival and the organs and systems of the human body.
Zanzibar is an archipelago and the gateway to the wilds of East Africa. Join Jeff as he encounters the rare red colobus monkey, the painted dog, a dangerous puff adder, and the huge robber crab.
Describes the people and action of the Revolutionary War battle of Trenton, New Jersey, in which General Washington led his men across the partially frozen Delaware River on the day after Christmas, 1776.
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