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The Arthur Ross Terrace will be closed this morning, Tuesday, October 21, for a private cultural observance. You many observe smoke and/or fire coming from the Terrace at that time. The FDNY has been notified in advance, and all safety precautions are in place. The Terrace will reopen at 1 pm.

A Unique Life Cycle

Unlike the larvae of marine pearl oysters, the specialized larvae of freshwater pearl mussels must attach to a fish for survival. Their tiny hooks cling to the fish's fins or gills until the larvae develop enough to drop off and settle on a lake bottom or streambed. The attached larvae feed on particles from the fish's food supply, and the fish carry them to new habitats. Because the environment must sustain both the larvae and the fish on which they depend, the presence or absence of pearl mussels may indicate the relative health of a river or lake.

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am - 5:45 pm
except on Thanksgiving and Christmas
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