The silverback gorilla is a special animal. This magnificent male is part of an endangered species. Complete this sheet to learn all about this gentle giant.

Expand your sea creature vocabulary with this Life in the Reef worksheet!

Help your child understand pollination with this informative worksheet, complete with a diagram.

Dragonflies are some of the oddest looking insects in the world, so it's appropriate that they have so many unique characteristics. Read all about them!

Did you know opossums are marsupials, which means they have a pouch! This fun worksheet is jam-packed with fun facts about the opossum!

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

Test your little nature-lover's knowledge about our feathery friends. Can she figure out which bird fits each description?

What on earth is a Saw Whet Owl? Find out about this species, and why it's named that way, with a fun info sheet!

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.

Did you know an elephant can eat 300 pounds of food in one day? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about elephants!

Try out this simple worksheet diagramming the anatomy of a shrimp. Big words, small sea creature.

Crossword puzzles are a great way to make life science learning fun. This one's all about natural selection, and it's sure to give your child a fun challenge.

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

Learn about the great horned owl of Yellowstone National Park, a bird so big and mean that it has the nickname, "tiger owl."

Looking for a worksheet to help your kid with science? This printable will help him with human anatomy and vocabulary.

Read about Yellowstone's red foxes, some of the most cunning and smart animals around.

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Get to know some of the friendly, furry, feathery river wildlife that live near American rivers, then match each one to its home.

Got a gardening guru on your hands? Give them a fun challenge with this fill-in-the-blanks quiz about the parts of a seed!

Find out more about what REALLY dwells in swamp ecosystems with this worksheet all about swamps.

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.