A brainy human relative who lived during an ice age nearly 150,000 years ago adapted to the bitter cold by developing a sophisticated stone-tool industry, according to a new study of a crystal-studded rib bone found in China.
A brainy human relative who lived during an ice age nearly 150,000 years ago adapted to the bitter cold by developing a sophisticated stone-tool industry, according to a new study of a crystal-studde… [+4685 chars]