Hippos may look cute, but keep your distance! These huge animals use their fast running speed and long canine teeth to defend their territories and their young. Find out why these beasts are Africa’s deadliest mammals.

Many people believe hyenas are only scavengers, eating food that other predators leave behind. But more often, hyenas use their sharp teeth and powerful jaws to hunt live prey. Learn how this fast, clever animal finds its next meal.

Pounce! A puma springs from the shadows and leaps on its prey. Its powerful claws and sharp teeth do the rest. Learn how these sleek wildcats stalk and find their next meal.

Polar bears look cuddly, but beware! Their curved claws, powerful jaws, and jagged teeth all help them attack and kill prey. Discover how the world’s biggest land predator finds its next meal.

Bottlenose dolphins love company. They live and hunt in groups and have a language all their own. Read to learn all about these smart mammals.

Did you know that some animals use poop to cool off? It's true. And there's even an animal that uses poop to defend itself! Learn more about the gross things animals do and why they do them. The zoo will never be the same!

The parts of a plant that grow below are just as important as what's above ground. Readers will learn about the world of roots, bulbs, and tubers, as well as other organisms that grow underground. Readers will also discover why the things that grow underground are an important part of the Earth.

Did you know that some pets eat poop? It's true. And there's even one pet that will eat its own tank mates! Learn more about the gross things pets do and why they do them. You'll never look at your pets the same way again!

Readers will learn just how amazing jellyfish can be. The many species of this ocean invertebrate may not look like other undersea animals, but they have some amazing adaptations and behaviors that help them survive. Without faces, limbs, bones, blood, or a brain, jellyfish have incredible ways eating, moving, reproducing, and defending themselves.

The only planet to support life, Earth has a lot going for it. Think you know everything there is to know about our home planet? Think again. Discover more about the blue planet we call home.

Blood sucking bed bugs, bats, and birds. Readers will learn about creatures all over the world that love to binge on blood. These disgusting diets and other interesting facts will make readers say, eww, gross!

What looks like a sea horse covered with leaves? It’s the sea dragon! Learn all about this real-life dragon that lives in the ocean off the coast of southern Australia. Life science curriculum links are covered throughout. Critical thinking questions using the common core are also included.