Fossil finds have since pushed back the ability of hominids to walk on two legs by millions of years.
Anthropologist D. Carl Johanson … has discovered a skull fragment, shin and thigh bones of a 3-million-year-old man in Ethiopia…. The bones belonged to an ape man of the genus.… “We have absolute, concrete evidence that our ancestors walked on two legs over 3 million years ago,” the 30-year-old scientist told a news conference.
Exactly when upright walking emerged in the evolutionary history of humans remains hotly debated. Fossil analyses suggest that several hominid species ambled around on two legs about 5 million to 7 million years ago. An upper leg bone of the oldest known, 7-million-year-old). But not all paleoanthropologists are convinced those features prove a two-legged gait. And some scientists think the bone belonged to an ape that may have walked upright at times.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
An Ancient Stingray Lookalike Inspires Underwater Soft RoboticsFossil animals are informing the field of soft robotics, and applications are abundant.
続きを読む »
Industrial Heat Pumps Are Coming For Your Fossil FuelsHeat pumps are pushing gas and oil out of homes and commercial buildings, and now they will put the squeeze on industrial operations, too.
続きを読む »
A rare 3-D tree fossil may be the earliest glimpse at a forest understoryThe 350-million-year-old tree, which was wider than it was tall thanks to a mop-top crown of 3-meter-long leaves, would look at home in a Dr. Seuss book.
続きを読む »
Ancient Australian air-breathing fish from 380m years ago springs back to lifeThe rivers of Australia, which once flowed across its now dry interior, used to host a range of bizarre animals -- including a sleek predatory lobe-finned fish with large fangs and bony scales. The newly described fossil fish discovered in remote fossil fields west of Alice Springs has been named Harajicadectes zhumini by palaeontologists.
続きを読む »
Abbott’s Border Standoff Fueled by a Climate Crisis He Helped to CreateRecord levels of forced migration are tied to a climate crisis that Governor Greg Abbott worsened on behalf of the fossil fuel industry.
続きを読む »
Industrial pollutants found in Mediterranean corals for the first timePollutants from burning fossil fuels have been found embedded in corals, for the first time, offering scientists a potential new tool to track the history of pollution, finds a new study led by UCL researchers.
続きを読む »