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A twisted protein sheds light on chronic damage disease in deer

A male white tailed deer looks to the left on a sunny winter day

Enlace Patrocinado The misfolded proteins responsible for a fatal neurological disease in deer have a twist. The first detailed structure of an infectious prion that causes chronic wasting disease, or CWD, reveals features that could help guide vaccine development or explain why the disease has not yet made the leap to humans, researchers report Oct. … Read more

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Male mosquitoes sometimes suckle as well

A male mosquito is seen in profile against a lime green background.

Enlace Patrocinado Male mosquitoes can be almost as bloodthirsty as females under certain conditions, a new study suggests. This overturns the notion that only female mosquitoes bite, drink blood and spread disease while males drink nectar. The finding hints that men are not completely harmless and may play a small role in the spread of … Read more

Are synthetic food colors bad for you? Here is the science.

Grocery store shelves, filled with colorful cereals, like Raisin Bran, Apple Jacks, Pops, and Froot Loops.

Enlace Patrocinado Synthetic food colors—and their links to neurobehavioral issues in children—are having a moment. Last month, California Governor Gavin Newsom signed into law the California School Food Safety Act, banning the state’s public schools from serving or selling foods containing six synthetic food dyes starting in 2028. Earlier this month in Michigan, protests erupted … Read more

AI-modified smiles can boost attraction, speed dating study shows

A woman on a computer screen smiles while she looks at a smaller square of a man, who is also smiling.

Enlace Patrocinado A well-timed smile can be the ultimate speed dating hack. Artificial intelligence-enhanced smiles during video chats led to greater romantic attraction, researchers report Oct. 28. Proceedings of the National Academy of Sciences. Face filters, available to social media users around the world, can smooth out blemishes, whiten teeth and highlight hair. They can … Read more

A large, ancient Mayan city has been found in southern Mexico

An aerial view of the topographical landscape of Southern Mexico, shown in gray

Enlace Patrocinado A massive Mayan landscape is hidden beneath a forested area of ​​southern Mexico. The newly discovered city, called Valeriana, spans an area roughly the size of Beijing and has “all the hallmarks of a classic Mayan political capital,” researchers reported in October. Antiquity. Its plazas connected by a grand causeway, temple pyramids, and … Read more