9 to 10 ft.
The Harbour Porpoise can grow up to 6 feet in length
they have flatter, rounder teeth for eating plants and fish
300 mph
about 6 ft
a porpoise can stay underwater for about 30 minutes or longer
Learn About Whale Watching in Iceland
Visit Buck Island Reef National Monument in St. Croix
Dick Van Dyke Saved by Porpoises