Animals with webbed feet live much of their lives in ___________.

People wear swim fins on their ____________.

A fossil is formed when an organism is _________________.

An imprint is a ______________.

Jared and Angie took the book and ____________ over page after page of birds with webbed feet.

The professor was an __________ on birds. He had special knowledge about birds.

"I believe some dinosaur footprints were recently found in Utah," the librarian said. What is a synonym for found?

A plant or animal matter changed into stone, or something like stone is ________________.

Any living animal, such as a mammal, bird, or insect is a __________________.

A steep, sloping area, often on the side of a river is a __________.

A snorkel is a short tube held in the mouth that is used to ____________ underwater.