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.
During a research snorkel trip at Crystal River National Wildlife Refuge, Dr. Margaret Hunter comes face to face with a manatee.
Public Domain.
USGS, public domain
