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Ice-Loving Crustaceans Ride Arctic Conveyer Belt
Sep 11, 2012
Ice-Loving Crustaceans Ride Arctic Conveyer Belt
Flea-like crustaceans that rely on Arctic ice may be using deep ocean currents as a sort of conveyer belt to bring them back to the pack after their ice has drifted out to sea, new research suggests. If it is indeed how the tiny crustaceans keep from going too far...
World's Largest Land Crabs Tracked With GPS
Nov 16, 2012
World's Largest Land Crabs Tracked With GPS
GPS technology has revolutionized the study of vertebrates like whales, birds and monkeys, allowing scientists to learn more about the animals' behaviors and sometimes-lengthy migrations. But nobody has used the technology to study arthropods, the world's most abundant animals, until now. A study published this week in the journal PLoS...
How 'Smashing' & 'Spearing' Shrimp Speedily Attack Prey
Nov 26, 2012
How 'Smashing' & 'Spearing' Shrimp Speedily Attack Prey
Spearing mantis shrimp hide in their burrows and wait for an unsuspecting creature to come along. Then, in the blink of an eye, they spear it with their long claws, like an underwater archer. How do they spear their prey so quickly? Maya deVries, a researcher at the University of...
Barnacles' Sneaky Penises Send Sperm on Sea Journey
Jan 16, 2013
Barnacles' Sneaky Penises Send Sperm on Sea Journey
For barnacles, which are stuck in one place, sex can be tricky. The shelled sea creatures have been known to use extra-long penises to fertilize their nearest neighbors. Now researchers have discovered that when those neighbors are too far away, barnacles will broadcast their sperm and wind up with long-distance...
Crabs Really Do Feel Pain: Study
Jan 16, 2013
Crabs Really Do Feel Pain: Study
Scientists have long held that crabs are unable to feel pain because they lack the biology to do so, but behavioral evidence has recently shown otherwise. Now, new research further supports the hypothesis that crabs feel pain by showing that crabs given a mild shock will take steps to avoid...
Invasive Crabs Help Restore Marsh
Apr 4, 2013
Invasive Crabs Help Restore Marsh
You may not be able to fight fire with fire, but fighting crabs with crabs may have some merit. Researchers studying the imperiled marshes of Cape Cod were recently surprised to discover that a section of the marsh was coming back, sprouting a veneer of cordgrass, according to a news...
Spooky Crabs Darken Camouflage From Day to Night
Apr 8, 2013
Spooky Crabs Darken Camouflage From Day to Night
Some teenagers like to stand out with wild hairstyles and flashy clothes, but young horned ghost crabs prefer to blend into the background. Juvenile crabs mimic daily changes in their environment, shifting their coloring from day to night, new research suggests. When the sun's bright at noon, the crab's light...
Supersized Crabs Bad News for Seafood Lovers
Apr 8, 2013
Supersized Crabs Bad News for Seafood Lovers
The giant crabs are coming. And they're hungry. Researchers at the University of North Carolina's (UNC) Aquarium Research Center have found that higher atmospheric levels of carbon dioxide — a greenhouse gas that's linked to global warming — are also causing crabs to grow to bigger, faster and stronger, according...
Hermit Crab Species Found Alive for First Time
Apr 8, 2013
Hermit Crab Species Found Alive for First Time
A recent submarine dive turned up a species of hermit crab that was previously only known through dead, dried specimens procured more than a century ago. The sub collected a few of the animals, known as Pylopagurus discoidalis, from the Caribbean and brought them back to an aquarium, where they...
Animal Sex: How Crabs Do It
May 30, 2013
Animal Sex: How Crabs Do It
Crabs can be found in all of the world's oceans and throughout the fresh water systems on land. Despite the crustaceans' apparent success, you'd think their odd body shape and rigid shells would make mating physically difficult. So just how do crabs do it? In order to grow and increase...
Tiny, Transparent Lobsters Stick Close to Home
Jun 13, 2013
Tiny, Transparent Lobsters Stick Close to Home
These teeny-tiny infant lobsters may be small, but their commercial value is anything but. Spiny-lobster (Panulirus argus) hauls in the Caribbean bring in $1 billion a year, which is why researchers are taking a closer look at these lobster babies. A new computer simulation, published June 7 in the journal...
How the Hairy-Chested 'Hoff' Crab Evolved
Jun 18, 2013
How the Hairy-Chested 'Hoff' Crab Evolved
Yeti crabs don't comb their hair to look good — they do it because they're hungry. These bizarre deep-sea animals grow their food in their own hair, trapping bacteria and letting it flourish there before combing it out and slurping it up. The crabs are found near cold seeps and...
Methane Meal: Deep-Sea Crab Gets an Icy Surprise
Aug 9, 2013
Methane Meal: Deep-Sea Crab Gets an Icy Surprise
In the ocean's inky depths, crabs scavenge for meals by tracking vibrations from sound and movement. For one crab, that meant a stream of icy methane bubbles seemed like a potential meal — until the methane froze onto its claws and mouth. Scientists from the Monterey Bay Aquarium Research Institute...
Discovered: Plastic-Eating Barnacles
Oct 23, 2013
Discovered: Plastic-Eating Barnacles
The oceans are full of plastic. Now, research finds that even barnacles are feeling the consequences. A third of barnacles caught in the North Pacific gyre, a region of the ocean notoriously littered with scraps of plastic, have microfragments of the plastic material in their digestive systems at a given...
Crazy Cretaceous Find: Intersex Crabs
Nov 13, 2013
Crazy Cretaceous Find: Intersex Crabs
DENVER — It's a crustacean conundrum: Why did some Cretaceous crabs sport both male and female characteristics? The answer is unknown, but new fossil discoveries reveal that intersex crabs were a small but persistent part of the population in South Dakota during the Cretaceous Period — and a parasitic barnacle...
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