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The fish kick may be the fastest subsurface swim stroke yet (2015)

I tug my black swim cap over my hair, strap on my pink goggles, and keep a focused calm, like Michael Phelps before a race. It’s lap swim on a Monday afternoon at my local YMCA, and I’m going to attempt the fish kick. Most fish move through the water with a horizontal wiggle. The fish kick challenges you to copy this movement: You completely submerge yourself underwater, position yourself on your side, keep your arms tight above your head in a streamline, and propel yourself forward with symmetr

On Mexico’s Caribbean Coast, There’s Lobster for the Tourists and Microplastics for Everyone Else

The fishermen of Puerto Morelos, on Mexico’s Caribbean coast, risk their lives every time they head out to sea to fish or dive for lobsters. Their bounty is dependent on luck, as the weather often makes it impossible to go out, while on other days the hooks they cast come back empty. These workers set out every day to find the best lobsters possible for the affluent vacationers who come to the region, while they and their families, cut off from many of the benefits of tourism development, get by

Ancient DNA Unlocks the Secret Recipe of Roman Fish Sauce

Ancient Romans were known for creating delicious sauces, including garum—a famous fish-based condiment. Scientists studying ancient DNA from a Roman-era salting plant in Spain have found that European sardines were the key ingredient. Fish was an important part of the ancient Roman diet, and Romans processed their catch for long-term preservation in coastal fish-salting plants called cetariae. There, they crushed and fermented small fish into pastes and sauces such as the iconic umami-flavored

This Animatronic Toothless From 'How to Train Your Dragon' Is One Hangry Toy

How to Train Your Dragon's Toothless is a hungry dragon, and the new Tame and Train Interactive Toothless announced by toy maker Spin Master on Tuesday is no different. You'll earn its trust partly by letting him have his munchies. The $50 animatronic is based on how Toothless looks in the live action film that came out this year. Once you've unboxed and powered him on, the dragon will constantly growl while showing red eyes. As you play with Toothless -- petting the toy's head, holding his sto

Mechanical Watch: Exploded View

Mechanical Watch: Exploded View In May 2022, someone posted to Hacker News Bartosz Ciechanowski's blog post explaining how mechanical watch movements work. Since then, his blog has been my absolute favorite corner of the Internet. His posts are not just well written and easy to follow, the accompanying interactive illustrations are magnificent. The first illustration in his blog post about mechanical watch movements allows you to "explode" a ticking mechanical movement and rotate it to inspe

Study: Cuttlefish adapt camouflage displays when hunting prey

Crafty cuttlefish employ several different camouflaging displays while hunting their prey, according to a new paper published in the journal Ecology, including mimicking benign ocean objects like a leaf or coral, or flashing dark stripes down their bodies. And individual cuttlefish seem to choose different preferred hunting displays for different environments. It's well-known that cuttlefish and several other cephalopods can rapidly shift the colors in their skin thanks to that skin's unique st