HumansAncient footprints show how early human species lived side by side Footprints preserved on the shore of Lake Turkana in Kenya seem to be from two ancient human species, showing they lived there at the same time about 1.5 million years ago ¿ìè¶ÌÊÓÆµ
LifeWeird microbes could help rewrite the origin of multicellular life Single-celled organisms called archaea can become multicellular when compressed, highlighting the role of physical forces in evolution ¿ìè¶ÌÊÓÆµ