Jenny Markert

Describes the physical characteristics, life cycle, and habits of the hippopotamus.

Describes a trip to Yellowstone National Park and introduces the area's biology and natural history.

The author describes what she saw on a backpacking trip in the Grand Canyon.

Describes tigers including their different types, their habitat, food, how they hunt, their babies, and the dangers facing them.

Describes zebras including their different types, their habitat, food, how they protect themselves, their babies, and the dangers facing them.

Describes the physical characteristics, behavior, habitat, and life cycle of moose.