Oldest in the world? 42,000-year-old mammoth ivory boomerang found in Polish cave
Discovery reinforces advanced cognitive abilities of early homo sapiens in Europe.
Prof. Sahra Talamo in the center, with Prof. Paweł Valde-Nowak is on her left, and Prof. Adam Nadachowski on her right.(photo credit: Talamo et al., CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/))
