Technology
Ancient footprints push back date of human arrival in the Americas
Footprints dating back 23,000 years have been discovered in the United States, suggesting humans settled North America long before the end of the last Ice Age, research published Thursday showed.
The findings push back the date at which the continent was colonized by its first inhabitants by thousands of years. The footprints were left in mud on the banks of a long-since dried-up lake, which is now part of a New Mexico desert.
Sediment filled the indentations and hardened into rock, protecting evidence of our ancient relatives, and giving scientists a detailed insight into their lives. “Many tracks appear to be those of teenagers and children; large adult footprints are less frequent,” writes the authors of the study published in the American journal Science.
“One hypothesis for this is the division of labor, in which adults are involved in skilled tasks whereas ‘fetching and carrying’ are delegated to teenagers. “Children accompany the teenagers, and collectively they leave a higher number of footprints.”
Researchers also found tracks left by mammoths, prehistoric wolves, and even giant sloths, which appear to have been around at the same time as the humans visited the lake. The Americas were the last continent to be reached by humanity.
For decades, the most commonly accepted theory has been that settlers came to North America from eastern Siberia across a land bridge — the present-day Bering Strait.
News Source : Nature
Technology
Surfaces of the Motorola Edge 50 Ultra with Snapdragon 8S Gen 3
Early this week, renders of the Edge 50 Fusion appeared, and Motorola has previously stated that the Edge 50 Pro will ship on April 3. The highest-end smartphone in the Edge 50 series, the Edge 50 Ultra, has now been shown in renders.
The phone is depicted in the renderings in peach fuzz and black with a vegan leather finish, while sisal, a beige color, will have a brushed surface. As opposed to the Snapdragon 7 Gen 3 in the Pro variant and the Snapdragon 6 Gen 1 in the Edge 50 Fusion, the phone is reportedly powered by the Snapdragon 8s Gen 3 SoC.
A 50MP primary camera, an ultra-wide camera, and a periscope telephoto camera with a 5x optical zoom are all included in the Motorola Edge 50 Ultra’s feature set. Additionally, there is a triple LED flash on the right side and a laser autofocus feature above the periscope lens.
Although the phone’s display, battery, and charging specifications are yet unknown, the Edge 50 Pro is said to include 12GB of RAM and support both 50W and 125W wired and wireless charging.
It is anticipated that this will launch as the Motorola X50 Ultra in China. It is unclear if the India launch may be expected on the same day as the rest of the Edge 50 series phones, even if this is scheduled to go official on April 3.
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