The National Park of American Samoa and the National Marine Sanctuary of American Samoa divers assisted Nautilus researcher Dr. Peter Ward from the University of Washington in a release exercise within the national park, out from the village of Amalau. Researchers are investigating population density andspecies composition surrounding the waters of Tutuila Island.
It swims by drawing water into and out of its living chamber propels water like a jet propulsion. They do not have a good vision as their eye structure lacks a solid lens. They only have a simple pinhole eye open to its living environment.
Did You Know?
During northern summers, three shorebirds--plover, turnstone, and tattler--nest in Alaska and northern Canada. After nesting, they fly non-stop over 3,000 miles of open ocean to Hawaii. After briefly resting there, they continue another 2,500 miles to American Samoa. The round-trip journey each year is 11,000 miles!