This printable crossword puzzle has 10 clues. Answers range from 4 to 10 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
A change in an organism or species that allows it to survive better in its environment
To act aggressively
The natural environment of a plant or animal
An animal that is hunted and eaten by a predator
A group of living things that are physically similar and can reproduce
To stay alive; to continue to exist
what owls throw up after eating; A small round thing full of skeletons
The center of an eye
To find a wild animal for food
Of or relating to very old forests