Month: February 2024

Enlarge / Scientists have found that hermit crabs are increasingly using plastic and other litter as makeshift shell homes. (credit: Luis Diaz Devesa/Getty)

Land hermit crabs have been using bottle tops, parts of old light bulbs and broken glass bottles, instead of shells.

New research by Polish researchers studied 386 images of hermit crabs occupying these artificial shells. The photos had been uploaded by users to online platforms, then analyzed by scientists using a research approach known as iEcology. Of the 386 photos, the vast majority, 326 cases, featured hermit crabs using plastic items as shelters.

At first glance, this is a striking example of how human activities can alter the behavior of wild animals and potentially the ways that populations and ecosystems function as a result. But there are lots of factors at play and, while it’s easy to jump to conclusions, it’s important to consider exactly what might be driving this particular change.

Enlarge / The current crop of GTP hybrid prototypes look wonderful, thanks to rules that cap the amount of downforce they can generate in favor of more dramatic styling. (credit: Porsche Motorsport)

DAYTONA BEACH, Fla.—Near-summer temperatures greeted a record crowd at the Daytona International Speedway in Florida last weekend. At the end of each January, the track hosts the Rolex 24, an around-the-clock endurance race that's now as high-profile as it has ever been during the event's 62-year history.

Between the packed crowd and the 59-car grid, there's proof that sports car racing is in good shape. Some of that might be attributable to Drive to Survive's rising tide lifting a bunch of non-F1 boats, but there's more to the story than just a resurgent interest in motorsport. The dramatic-looking GTP prototypes have a lot to do with it—powerful hybrid racing cars from Acura, BMW, Cadillac, and Porsche are bringing in the fans and, in some cases, some pretty famous drivers with F1 or IndyCar wins on their resumes.

But IMSA and the Rolex 24 is about more than just the top class of cars; in addition to the GTP hybrids, the field also comprised the very competitive pro-am LMP2 prototype class and a pair of classes (one for professional teams, another for pro-ams) for production-based machines built to a global set of rules, called GT3. (To be slightly confusing, in IMSA, those classes are known as GTD-Pro and GTD. More on sports car racing being needlessly confusing later.)