PARK HOME
PLAN YOUR VISIT
Directions
Operating Hours & Seasons
Fees & Reservations
Things To Do
Brochures
NATURE & SCIENCE
MANAGEMENT
SUPPORT YOUR PARK
Site Index
Frequently Asked Questions
Bookstore
Contact Us
Aquatic Invaders
Did You Know? Isle Royale’s inland lakes are home to an amazing diversity of invertebrates. Freshwater clams, sponges, bryozoans, snails, and insects exist in an abundance of forms and in huge sizes not seen since the late 1800’s.
Last Updated: August 24, 2009 at 12:44 EST