Category: Science

Fossils Upend Conventional Wisdom about Evolution of Human Bipedalism
By Categories: History, Science

Click Here to Read: Fossils Upend Conventional Wisdom about Evolution of Human Bipedalism For most of human evolution, multiple species with different ways of walking upright coexisted By Jeremy DeSilva in the Scientific American issue of November 1, 2022.

Cast of the “Laetoli footprints” — the earliest known human footprints in the world, on display in the Hall of Human Origins in the Smithsonian Museum of Natural History in Washington, D.C. These footprints are those of Australopithecus afarensis. Image: Tim Evanson.  Public Domain via Wikimedia Commons.

 

Drought reveals 113 million-year-old dinosaur tracks in Texas:
By Categories: Science

Click Here to Read: Drought reveals 113 million-year-old dinosaur tracks in Texas: Prints mostly left by a creature that stood 15 feet tall, weighed 7 tons and roamed the area 113 million years ago have emerged as the Paluxy River has disappeared By Tim Stelloh on the NBC News website on Aug. 23, 2022. 
Acrocanthosaurus atokensis, Early Cretaceous (Aptian-Albian) of North America.  Image: DiBgd  Public Domain via Wikimedia Commons.

Identity of mystery fossils found in Chinese cave revealed by DNA analysis
By Categories: History, Science

Click Here to Read:  Identity of mystery fossils found in Chinese cave revealed by DNA analysis By Katie Hunt, on the  CNN  News website on July 14, 2022.
Longlin 1 partial skull (each bar = 1 cm) found in Longlin Cave in the Guangxi Zhuang region of China. Image Curnoe, D.; Xueping, J.; Herries, A. I. R.; Kanning, B.; Taçon, P. S. C.; Zhende, B.; Fink, D.; Yunsheng, Z  Public Domain via Wikimedia Commons. 

Seriously, What’s Making All These Mysterious Space Signals?
By Categories: Science

Click Here to Read: Seriously, What’s Making All These Mysterious Space Signals? In astronomy, the study of fast radio bursts can sometimes feel like a game of Clue By Marina Koren on the Atlantic website on July 15. 2022.

 This image, called the Hubble eXtreme Deep Field (XDF), combines Hubble observations taken over the past decade of a small patch of sky in the constellation of Fornax. With a total of over two million seconds of exposure time, it is the deepest image of the Universe ever made, combining data from previous images including the Hubble Ultra Deep Field (taken in 2002 and 2003) and Hubble Ultra Deep Field Infrared (2009).Image:  NASA.  Public Domain via Wikimedia Commons.