Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

If your kid loves the ocean, he may enjoy learning tons of trivia about our fishy friends in the sea. Brush up on your fish facts with this fun page!

Use clues to fill in the boxes in this crossword puzzle, and learn more about freshwater fish along the way.

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

Did you know fish could fly? Pisces, which is also a zodiac sign, is a constellation, named many years ago.

What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

Use your knowledge of sea creatures to fill out this crossword puzzle.

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

Wolves are an animal with a bit of rough past in Yellowstone National Park. Learn all about them!

Learn all about the different jellyfish and then test your knowledge with the questions at the bottom of the page.

Classify the animals in this life sciences matching worksheet!