'Gnarly' tumor shows dinosaurs also got cancer

Science & Health Aug 4, 2020

'Gnarly' tumor shows dinosaurs also got cancer

When scientists first unearthed fossils of a horned dinosaur called Centrosaurus in the badlands of Dinosaur Provincial Park in Canada's Alberta province in 1989, they spotted a badly malformed leg bone they figured was a healed fracture. A fresh examination, researchers said on Monday, shows ...

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 ...