Red-light devices are all over social feeds and make enormous promises. From the many, we find the few that are actually worth your commitment, time, and money.

Summer’s here—and so are the long days, warm nights, and endless reasons to celebrate. Whether you're shopping for beach lovers, backyard grill masters, or globe-trotting adventurers, our curated ...

The cookie-cutter shark employs a unique parasitic strategy, using its specialized jaw to remove circular chunks of flesh from larger animals without killing them. These diverse feeding adaptations ...

After using Crumbl’s signature cookie cutter to create even pizza-like slices of the huge circles, many hands went back for seconds and thirds of the dessert snack.

Unusual scars attest to the dangers of seal life in the open sea. Cookie cutter shark scars, not fatal, are common. I comfort myself with the thought that blubber doesn’t have many nerve endings.

The cookie-cutter shark (Isistius brasiliensis) uses bioluminescence in a particularly devious hunting strategy—it glows everywhere except for a dark collar around its neck, creating what appears to ...

In October, Jack Tolley, 7, lost a chunk of flesh, 73mm in diameter, from his calf after being bitten by a cookie cutter shark at Alma Bay. Originally published as 3.8m tiger shark caught off ...