Africa, where humans first evolved, today remains a place of remarkable diversity. Diving into that variation, a new analysis of 180 Indigenous Africans from a dozen ethnically, culturally, geographically, and linguistically ...
Evolution
Mar 2, 2023
0
176
Different cell types—say, heart, liver, blood, and sperm cells—possess characteristics that help them carry out their unique jobs in the body. In general, those characteristics are hard-wired. Without intervention, a ...
Cell & Microbiology
Feb 21, 2023
0
66
Since OpenAI launched ChatGPT a few months ago, the question on everyone's mind has been, "How will this change our world?" ChatGPT is one of the world's most advanced machine learning and language processing models. It can ...
Education
Feb 20, 2023
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4
In many instances, the physical manifestation of cancers and the ways they are subsequently diagnosed is via a tumor, tissue masses of mutated cells and structures that grow excessively. One of the major mysteries in understanding ...
Cell & Microbiology
Feb 17, 2023
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39
Perched next to a river near a glacier's edge in Greenland, Penn biogeochemist Jon Hawkings and Jack Murphy, senior research coordinator in Hawkings' lab, scooped up samples of frigid meltwater, careful to seal the bottles ...
Environment
Feb 14, 2023
0
60
Managers who want to keep employees from quitting should consider reordering their tasks, according to a new paper in the Proceedings of the National Academy of Sciences co-authored by Wharton management professor Maurice ...
Social Sciences
Feb 10, 2023
0
108
Charlie, Jari, and Kiwi are pet dogs with a superpower: Their sensitive noses can distinguish between a healthy deer and one sick with chronic wasting disease (CWD), all from a whiff of the deer's poop.
Plants & Animals
Feb 8, 2023
0
61
In their evolutionary battle for survival, viruses have developed strategies to spark and perpetuate infection. Once inside a host cell, the Ebola virus, for example, hijacks molecular pathways to replicate itself and eventually ...
Cell & Microbiology
Feb 3, 2023
0
67
Symbiotic relationships are everywhere in nature. In the soil, for example, mycorrhizal fungi enhance water and nutrient absorption for plants while feeding on sugars their roots release. In another classic mutualism, ants ...
Evolution
Feb 2, 2023
0
55
We tend to talk about social media in sweeping terms: It's either the death knell for democracy or its savior. It's a tool to fight authoritarianism or a weapon to spread strategic misinformation. It polarizes us or pulls ...
Social Sciences
Feb 2, 2023
0
4
