Ancient Footprints Suggest 2 Human Species Were Neighbors in Kenya 1.5 Million Years Ago — VOA Learning English
Topics: наука й природа
Beginning
Scientists say ancient footprints left in wet dirt on a Kenyan lakeside suggest that two early human ancestors were neighbors about 1.5 million years ago.
Two separate species made the sets of footprints “within a matter of hours, or at most days,” said paleontologist Louise Leakey, a writer of the research published recently in the journal Science. Paleontologists study fossils to learn about the history of life on Earth.
Scientists already knew from earlier fossil finds that these two extinct lines of human development – called Homo erectus and Paranthropus boisei – lived about the same time in the Turkana Basin.
But dating fossils is not exact. “It’s plus or minus a few thousand years,”…
Tap any word for its translation at once; the word goes into your deck together with its sentence.