ochanomizu university

Are You Hooked Yet? World’s Oldest Fishhooks Found In Japan

The world’s oldest fishhooks, which were carved from sea snail shells, have just been found in a limestone cave on Okinawa island in Japan.

Traditional Chinese Medicines Often Contaminated With Mercury & Arsenic

Using a stringent two test method, researchers have found that 32 out of 32 traditional Chinese medicines tested were contaminated with mercury and arsenic.