With a bulging head that looks like it swallowed a gavel, there's no mistaking the animal: It’s a hammerhead shark. Across the globe, there are more than nine hammerhead species, many of which are ...

This video explores the geography of livestock, tracing where major animals like chickens, cows, pigs, sheep, and horses were first domesticated across continents. It shows how early humans adapted to ...

Photographic reference with facts about twenty-five hundred animal species that detail animal habitats, life cycles, and conservation efforts. Includes glossary and separately paged section at the end ...