Rebecca E. Hirsch

Archaeopteryx

Tyrannosaurus rex

The human microbiome

Exploding Ants and Other Amazing Defenses

Climate migrants

Birds vs. Blades?

Plants can't sit still

The rock cycle

Sedimentary rocks

Platypuses

Buffalo migration

Dall sheep migration

Arctic tern migration

Monarch butterfly migration

Green sea turtle migration

Top 50 reasons to care about polar bears

Grizzly bears

Rise to the Sky

Where Have All the Birds Gone?

Night Creatures

Garfield's Guide to Lasagna

Climate Change and Energy Technology

Trap-Door Spiders and Other Amazing Predators

Thousand-Mile Fliers and Other Amazing Migrators

Using Physical Maps

Gray Wolves

What's Great about Arizona?

Crystals

Komodo Dragons

Leatherback Sea Turtles

Hydrogen and fuel cells

Antarctica

South America

Europe

North America

Africa

Asia

Australia

Properties of matter

Motion and forces

Science lab

Growing your own garden

Save the planet

Protecting our natural resources

Monarchs Are Missing

Deathly Compendium of Poisonous Plants

Sensational Senses

Birds vs. Blades?