DNA shows genetic variability of the nene lost more than 500 years ago, not during the 20th century
...d between 1833 and 1928; bones from archaeological middens radiocarbon dated at 160 to 500 years ago; and bones from paleontological sites dating from 500 to 2540 radiocarbon years before the present. They were surprised to find the levels of genetic variation typical of contemporary geese only in the paleo...Overfishing sets the stage for other problems in marine ecosystems
...cience. In Maine, we have evidence from Indian middens dating back 5,000 yearsthat our coastal zone was dominated by large predatory fish such as cod.The average size of cod for thousands of years was about a meter longwhich is impressive considering the fishers used crude hooks made of deerbone with lin...On the floor of the sea: USGS biologists search for rare, white abalone
...ine snails having been found in theearliest Indian middens of some 10,000 years ago. The white abalone is adeep-water species found between 80 and 200 ft. on rocky reefs from PointConception in California to Punta Abreojos in Baja California, Mexico. Highlyprized for their tender white meat, they often brou...