3+ day, 9+ hour ago   (336+ words) Griffith University team finds arecoline traces and severe tooth wear in Indonesian hunter‑gatherer remains Evidence has been found that hunter-gatherers living in Indonesia about 25,000 years ago habitually consumed "betel nut," a psychoactive substance that has long been used across…...

4+ day, 9+ hour ago   (436+ words) Ancient human group used bone tools and hunted large animals New traces of the archaic human group Denisovans, whose way of life has remained largely mysterious due to the scarcity of fossils, have been discovered in southwest China. Alongside Denisovan…...

1+ week, 22+ hour ago   (447+ words) Scientists have found a way to trace when pottery, made by firing clay at high temperatures, was produced by analyzing traces of Earth’s magnetic field preserved in the ceramics. They also succeeded in distinguishing cheap souvenir-shop pottery from genuine artifacts…...

3+ week, 5+ day ago   (253+ words) Opposing helical collagen structures keep the narwhal’s spiral tusk rigid and unbent A research team led by Professor Henrik Birkedal of Aarhus University in Denmark and Professor Marianne Liebi of Chalmers University of Technology in Sweden structurally analyzed why narwhal…...