image
Urchin
A white urchin makes its way across the heavily sedimented seafloor explored during the eleventh dive of the 2026 American Samoa ROV + Mapping Exploration expedition.
Official websites use .gov
A
.gov website belongs to an official government
organization in the United States.
Secure .gov websites use HTTPS
A
lock (
) or https:// means you’ve safely connected to
the .gov website. Share sensitive information only on official,
secure websites.