Hero Crayfish Cheats Death By Removing Its Own Claw to Escape Pot of Boiling Water

iStock
iStock

There remains a perpetual debate over the ethical consequences of taking a crustacean and boiling it alive. In early 2018, Switzerland actually made it illegal to give living lobsters a scalding hot bath. (Instead, chefs are expected to stun them electronically before submersion.) Scientists can’t reach a conclusion over whether decapods feel pain—or if we can even define what that means for them.

While humans argue, some clawed sacrifices are taking action. A crayfish filmed by a Facebook user in China is making the internet rounds and being hailed as a hero after taking dramatic measures to escape a boiling pot of water.

In the footage, the crayfish appears to be unable to extricate its left appendage from a bubbling vat of doom. Rather than succumb, the crayfish uses its right claw to sever its compromised claw and scurry off. At 11 seconds, it’s the best summary of a Saw film possible.

“Juike,” the user who originally posted the video to the Weibo social media site, says he has taken the crafty invertebrate home and put him in an aquarium as a pet. The tiny survivalist may even regrow his lost limb, as crawfish are able to do, although it might not reach its former size.

Crayfish are in inherent danger of being turned into soup in China, where specialty restaurants devoted to their preparation are popping up. Some observers believe their popularity is due to diners having to step away from phones and social media in order to use both hands to peel away at their shells.

[h/t BBC]

Is There An International Standard Governing Scientific Naming Conventions?

iStock/Grafissimo
iStock/Grafissimo

Jelle Zijlstra:

There are lots of different systems of scientific names with different conventions or rules governing them: chemicals, genes, stars, archeological cultures, and so on. But the one I'm familiar with is the naming system for animals.

The modern naming system for animals derives from the works of the 18th-century Swedish naturalist Carl von Linné (Latinized to Carolus Linnaeus). Linnaeus introduced the system of binominal nomenclature, where animals have names composed of two parts, like Homo sapiens. Linnaeus wrote in Latin and most his names were of Latin origin, although a few were derived from Greek, like Rhinoceros for rhinos, or from other languages, like Sus babyrussa for the babirusa (from Malay).

Other people also started using Linnaeus's system, and a system of rules was developed and eventually codified into what is now called the International Code of Zoological Nomenclature (ICZN). In this case, therefore, there is indeed an international standard governing naming conventions. However, it does not put very strict requirements on the derivation of names: they are merely required to be in the Latin alphabet.

In practice a lot of well-known scientific names are derived from Greek. This is especially true for genus names: Tyrannosaurus, Macropus (kangaroos), Drosophila (fruit flies), Caenorhabditis (nematode worms), Peromyscus (deermice), and so on. Species names are more likely to be derived from Latin (e.g., T. rex, C. elegans, P. maniculatus, but Drosophila melanogaster is Greek again).

One interesting pattern I've noticed in mammals is that even when Linnaeus named the first genus in a group by a Latin name, usually most later names for related genera use Greek roots instead. For example, Linnaeus gave the name Mus to mice, and that is still the genus name for the house mouse, but most related genera use compounds of the Greek-derived root -mys (from μῦς), which also means "mouse." Similarly, bats for Linnaeus were Vespertilio, but there are many more compounds of the Greek root -nycteris (νυκτερίς); pigs are Sus, but compounds usually use Greek -choerus (χοῖρος) or -hys/-hyus (ὗς); weasels are Mustela but compounds usually use -gale or -galea (γαλέη); horses are Equus but compounds use -hippus (ἵππος).

This post originally appeared on Quora. Click here to view.

A Rare Blue Lobster Ended Up in a Cape Cod Restaurant

Richard wood, Flickr // CC BY 2.0
Richard wood, Flickr // CC BY 2.0

Lobsters have precious few defenses when it comes to being tossed in a vat of boiling water or on a grill and turned into dinner. They have not yet evolved into not being delicious. But sometimes, one lucky lobster can defy the odds and escape their sentence by virtue of a genetic defect that turns them blue.

According to MassLive, one such lobster has been given a reprieve at Arnold's Lobster & Clam Bar in Cape Cod, Massachusetts. Named "Baby Blue," the crustacean arrived at the restaurant from the Atlantic and was immediately singled out for its distinctive appearance.

Blue lobsters are a statistical abnormality. It's estimated only one in every two million carry the defect that creates an excessive amount of protein that results in the color. A lobsterman named Wayne Nickerson caught one in Cape Cod in 2016. He also reported catching one in 1990. Greg Ward of Rye, New Hampshire caught one near the New Hampshire and Maine border in 2017.

Lobsters can show up in a variety of colors, including orange, yellow, a mixture of orange and black, white, and even take on a two-toned appearance, with the colors split down the middle. Blue is the most common, relatively speaking. A white (albino) specimen happens in only one out of 100 million lobsters. The majority have shells with yellow, blue, and red layers and appear brown until cooked, at which point the proteins in the shell fall off to reveal the red coloring.

It's an unofficial tradition that blue lobsters aren't served up to curious customers. Instead, they're typically donated to local aquariums. Nathan Nickerson, owner Arnold's, said he plans on doing the same.

[h/t MassLive]

SECTIONS

arrow
LIVE SMARTER