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A tethered mosquito approaches the web in the path of release of the cone, and triggers web release response. Credit: S. I. Han and T. A. Blackledge, 2024. A tethered mosquito approaches the web in the path of release of the cone, and triggers web release response. Credit: S. I.

Between 8,000 and 12,000 years ago, people in Alaska kept reinventing dogs with mixed results. The dogs that share our homes today are the descendants of a single group of wolves that lived in Siberia about 23,000 years ago. But for thousands of years after that split, the line between wolf and dog wasn’t quite clear-cut.

NEW YORK — Brian Thompson led one of the biggest health insurers in the U. S. but was unknown to millions of the people his decisions affected. Then Wednesday’s fatal shooting of the UnitedHealthcare CEO in a targeted killing on a midtown Manhattan sidewalk thrust the executive and his business into the national spotlight. Thompson, who was 50, ran the insurance arm of the giant UnitedHealth Group Inc.

A suburban roofing company that has repeatedly faced the ire of federal safety regulators has been hit with more citations for putting workers at risk of falls, the Occupational Safety and Health Administration said Wednesday. OSHA said it was the eighth time it has cited Lake Zurich-based Fino Exterior Inc. since 2020.

The Springs at Monarch Landing in Naperville is among the best nursing homes in the country, according to a recent report from Newsweek. In September, Newsweek released its list for America’s Best Nursing Homes of 2025. The ranking recognizes 1,050 of the country’s top nursing homes. Honorees include The Springs at Monarch Landing, which came in as the No.

On Wednesday, OpenAI CEO Sam Altman announced a "12 days of OpenAI" period starting December 5, which will unveil new AI features and products for 12 consecutive weekdays. Altman did not specify the exact features or products OpenAI plans to unveil, but a report from The Verge about this "12 days of shipmas" event suggests the products may include a public release of the company's text-to-video model Sora and a new "reasoning" AI model similar to o1-preview.