Photo

Harp Seal, Prince Edward Island National Park, Canada

Harp seals are protected in the United States by the Marine Mammal Protection Act....

Photo

Grey Seal Strikes a Pose

A Grey Seal (Halichoerus grypus) poses in the waters off Acadia National Park in...

Lesson Plan

Wreck Detectives

Students utilize a grid system to document the location of artifacts recovered from...