People in Jersey are being invited to spend the day counting the wild animals and plants at Jersey Zoo.
The BioBlitz will involve a bird walk, moth trapping, a tree trail and pond dipping.
Bioblitzes are family-friendly wildlife surveys, where people can help local naturalists and wildlife experts.
The aim is to find and name as many different plants and animals as possible within 12 or 24 hours.
Everything found during a Bioblitz is recorded and passed on to local wildlife databases. All the information gathered helps experts to better protect the environment in the future.
It is hoped the event will allow people to better understand the island's nature reserves and provide a chance for school children and the public to record species.