Ancient human ancestor’s bones ‘butchered by another ancestor for meat’

View of hominin tibia - enlarged area showing cut marks (Briana Pobiner)

Look at the hominin tibia – the enlarged area showing the cut marks. (Briana Pobiner) The bone of an ancient human relative shows signs of cutting with stone tools – of another human relative looking to cut meat to eat. The nine cut marks on a 1.45-million-year-old left shin bone from a relative of A … Read more

Asgard Archaea and All Eukaryotes Share Common Ancestor, Study Says | Sci.News

Asgard archaeon.  Scale bar - 500 nm.  Image credit: Imachi et al., doi: 10.1038/s41586-019-1916-6.

Understanding how complex eukaryotic cells arose from prokaryotic ancestors represents a major challenge in biology. The main point of contention in refining scenarios of eukaryogenesis revolves around the exact relationship between Archaea and eukaryotes. In the new research, scientists from the University of Texas at Austin and elsewhere have generated 63 new Asgard archaea genomes … Read more