ScienceHuman ancestors moved from climbing trees to walking on the ground 1.8 million years ago· 9/24/2026, 7:12:14 AM· 3 min readRead original story →Share:TwitterFacebookWhatsAppLinkedInCopy linkRelated storiesscienceElephants use medicinal plants to treat themselves, researchers findscienceDaily Quiz | On Mars Orbiter missionscience'Perfect storm' could lead to rubbish piling up on Scotland's streets, experts warnscienceDid El Niño turn Hurricane Polo into the most powerful storm of the season?