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Enlarge / Scientists have observed wound care and selective amputation in Florida carpenter ants. (credit: Danny Buffat/CC BY-SA) Florida carpenter ants (Camponotus floridanus) selectively treat the wounded limbs of their fellow ants, according to a new paper published in the journal Current Biology. Depending on the location of the injury, the ants either lick the wounds to clean them or chew off the affected limb to keep infection from spreading.

Enlarge / For some time now, Tesla has produced more cars than it has sold. This past quarter, that changed. (credit: Toru Hanai/Bloomberg via Getty Images) Tesla published its quarterly production and delivery numbers yesterday afternoon, and anyone hoping that the last three months have marked a return to growth will be disappointed.

Enlarge / Microsoft's Surface Pro 11, the first flagship Surface to ship exclusively using Arm processors. (credit: Andrew Cunningham) Microsoft has been trying to make Windows-on-Arm-processors a thing for so long that, at some point, I think I just started assuming it was never actually going to happen. The first effort was Windows RT, which managed to run well enough on the piddly Arm hardware available at the time but came with a perplexing new interface and couldn't run any apps designed for regular Intel- and AMD-based Windows PCs.

Enlarge / Image of Hurricane Beryl captured from the International Space Station on Monday. (credit: Matthew Dominick/NASA) Officially, of course, the Atlantic hurricane season begins on June 1, But most years, the tropics remain fairly sleepy for the first month or two, allowing coastal residents to ease into the season. Yes, a tropical storm might form here or a modest hurricane there.

Colorado business leaders started the spring with a brighter outlook but have shed some of that optimism, according to the Leeds Business Confidence Index from the University of Colorado Boulder. After two years in pessimistic territory, driven by concerns over inflation and a potential recession, the index surged from 45.3 for the first quarter to 53.7 in the second.

Enlarge (credit: Aurich Lawson/Getty Images) Since antiquity, humans have envisioned various means of time travel into the future or the past. The concept has since become a staple of modern science fiction. In particular, the number of films that make use of time travel has increased significantly over the decades, while the real-world science has evolved right alongside them, moving from simple Newtonian mechanics and general relativity to quantum mechanics and the notion of a multiverse or more exotic alternatives like string theory. But not all time-travel movies are created equal.