World / Science & Health Feb 14, 2020

DNA study detects mysterious human 'ghost' species

Scientists examining the genomes of West Africans have detected signs that a mysterious extinct human species interbred with our own species tens of thousands of years ago in Africa, the latest evidence of humankind's complicated genetic ancestry. The study indicated that present-day West Africans can ...

Inbreeding plagued the last woolly mammoths

World / Science & Health Feb 8, 2020

Inbreeding plagued the last woolly mammoths

The world's last woolly mammoths, sequestered on an Arctic Ocean island outpost, suffered from serious genetic defects caused by generations of inbreeding that may have hampered traits such as sense of smell and male fertility in the doomed population. Scientists said on Friday that the ...

World / Science & Health Dec 20, 2019

Fossil forest from 388 million B.C. called world's oldest

Scientists have discovered what could be the world's oldest forest, potentially rich in information on the link between forests and climate change, according to a study published Thursday in the journal Current Biology. The title of world's oldest fossil forest had previously been given to ...