The USA-NPN website will be temporarily unavailable for scheduled maintenance beginning late Sunday, July 26 through early Monday, July 27 (EDT). Thank you for your patience and understanding.
We are undertaking a major revision of our Nature's Notebook data collection app to make it easier and more fun to track plant and animal seasonal activity!
A modified and specialized leaf designed to function as a trap, such as a Venus Fly-trap leaf that closes in half upon a receiving a trigger/stimulus and trapping an insect that it will digest for nutrients