A Shark USA is a citizen-science program that engages anyone who spends time on the water in
sand tiger shark research along the Atlantic coast. Divers, snorkelers, and others are asked to
photograph encounters with sand tiger sharks and post their images to the Spot A Shark USA website.
Scientists then use unique spot patterns visible along the sides of the photographed sharks to identify
individual animals. Identifying individual sand tiger sharks helps track shark movement and behavior
over time. It also determines which coastal habitats sand tiger sharks use during their lives. This
information is used by Spot A Shark USA researchers, as well as international partners, to facilitate
management decisions aimed towards conserving sand tiger sharks, which are critically endangered in
several parts of the world.