fish

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Florida Fish Have Babies by 'Virgin Birth'

Smalltooth sawfish stun scientists with offspring

(Newser) - Looks like female sawfish don't need the guys so much anymore. Scientists have discovered seven examples in Florida of virgin-birth offspring by smalltooth sawfish, an endangered species whose members grow up to 25 feet in length and have long snouts studded with teeth, LiveScience reports. Their offspring may provide...

Meet the World's First Warm-Blooded Fish

The 'opah' lives in the deep, and it just gave up a big secret

(Newser) - Your old science teacher was wrong: It turns out that not all fish are cold-blooded. Scientists have discovered that the opah, a deep-sea dweller also known as the moonfish, is, in fact, a warm-blooded creature and the first such fish ever found, reports LiveScience . Thanks to a unique set of...

After Blood Transfusion, Boy Allergic to Peanuts

And fish, in 'extremely rare' case

(Newser) - An 8-year-old boy in Canada never had any problems eating salmon or peanuts. Then, within just a few weeks of getting a blood transfusion as part of his treatment for brain cancer, he ate salmon and experienced a severe allergic reaction within 10 minutes. The same thing happened when he...

Snail Eats Fish After Drugging Them

Cone snail's toxin could teach us a thing or two

(Newser) - It may be small and slow, but the geographic cone snail packs a wallop. The creature eats fish after paralyzing them with a toxin, researchers find. When its prey swims by, it sends out a poisonous cloud that's packed with enough insulin to make the fish's blood sugar...

Scientists Find Fish Under 2.5K Feet of Antarctic Ice

They expected to find only microbes in the dark, tiny wedge of seawater

(Newser) - With the help of a special hot-water drill, a large, multidisciplinary team of scientists has become the first to bore through the Ross Ice Shelf—the biggest body of floating ice in the world, roughly the size of France—and sample life below nearly 2,500 feet of ice. What...

Cat&#39;s Fish Feast Costs Deli $1K
 Cat's Fish Feast Costs Deli $1K 
Dec 12, 2014 11:58 AM CST

Cat's Fish Feast Costs Deli $1K

Feline dined on dried octopus, squid, other gourmet seafood at deli

(Newser) - This stray cat strutted up to a deli in Russia's Vladivostok International Airport and got right to work—chowing down on dried octopus, squid, and whatever other fine fare the shop's owner had set out for his human customers, the BBC reports. The cat, apparently an airport regular,...

Electric Eels Use 'Remote Control' to Paralyze Prey

Scientists say the fish are the only ones known to do that

(Newser) - Electric eels have long been known to deliver low-voltage pulses as a form of natural sonar—but now researchers out of Vanderbilt University have discovered the eels also deliver high-voltage shocks, which they use to paralyze their prey—from a distance, with no physical contact—in just three milliseconds. It'...

Scary Fish Caught on Video for 1st Time

It's called the black seadevil

(Newser) - Talk about nasty: She's got serious fangs, a jutting jaw, and a light-pole attached to her forehead. But then, she's only 3.5 inches long. For the first time, scientists shot video this week of the rarely observed black seadevil during a dive in Monterey Bay, Calif., Fox...

Sex Is 385M Years Old
 Study: Sex Is 385M Years Old 
Oct 20, 2014 7:23 AM CDT

Study: Sex Is 385M Years Old

First time was awkward, 'done sideways, square-dance style'

(Newser) - Let's face it: Spawning in the water isn't terribly efficient or much fun at all. An extinct vertebrate named "Microbrachius dicki" sorted this out when it apparently became the first to master internal fertilization some 385 million years ago—far earlier than previously thought, reports Phys.org...

Fisherman's Catch Has 'Human Teeth'

Experts say it's probably some kind of piranha

(Newser) - A fisherman in Russia has come upon a scary-sounding creature: a fish with teeth that look like our own, UPI reports. "I opened its mouth and was horrified to see human-like teeth in there," Alexander Korobov says. He caught the fish in the city of Arkhangelsk and took...

Antarctic Fish Have Ice in Their Veins

Antifreeze proteins appear to prevent melting

(Newser) - How do the fish that thrive in the waters around Antarctica prevent their blood from turning to ice? Turns out at least some of them don't. Scientists have long known that the group of fish species known as notothenioids have an antifreeze protein in their blood that prevents them...

Anti-Anxiety Drug Makes Fish Live Longer
Anti-Anxiety Drug
Makes Fish Live Longer 
STUDY SAYS
Aug 8, 2014 11:30 AM CDT

Anti-Anxiety Drug Makes Fish Live Longer

Human tranquilizer makes perch aggressive but also seems to increase longevity

(Newser) - On the one hand, fish exposed to the tranquilizer oxazepam when it seeps into their waters kind of become jerks, reports a study in Nature . On the other hand, this same drug, a benzodiazepine used to treat anxiety and insomnia in human adults, apparently helps them live longer, reports Nature...

Piranha-Like 'Testicle Biter' Caught in Michigan

Pacu was probably released from aquarium

(Newser) - A woman fishing on the Michigan side of Lake St. Clair last week caught an unusual—and by some accounts, terrifying—fish more commonly found in South America. "When it first came up, I’m like, 'Holy crap,'" Holley Luft tells Fox News . "And just...

Spiders Able to Catch, Devour Fish
 Spiders Able to 
 Catch, Devour Fish 
new study
Jun 19, 2014 6:03 AM CDT

Spiders Able to Catch, Devour Fish

Many species of spiders spanning 6 continents hunt, feast on fish

(Newser) - If you aren't already arachnophobic, this might be enough to turn you: Spiders don't just hunt insects; they also like to fish, and are apparently rather good at it. So say scientists who have observed at least 18 species of spiders on every continent but Antarctica hunting and...

Your Jaw May Come From This Ancient Fish

Minnow-sized creature had something akin to one 500M years ago

(Newser) - Introducing Metaspriggina, a minnow-sized fish that lived about 500 million years ago and appears to occupy a crucial branch of your family tree. Scientists say the creature might just be the ancestor of nearly all vertebrates, reports LiveScience . The revelation comes after study of dozens of remarkably well-preserved Metaspriggina fossils...

Rare 'Cannibal' Fish Shocks Beachcombers

Lancetfish washes up on North Carolina shore

(Newser) - First a weird shark , and now this: Guests at Jennette's Pier in Nags Head, NC, were surprised to see a rare Lancetfish wash up on shore last week, My Fox 8 reports. People took photos of the fish—which has razor-sharp, "fang-like" teeth, and grows up to 6....

Smelly Fish a Big Hit on S. Korean Menus

Ammonia scent, or worse, doesn't deter fans of skate

(Newser) - The aroma of one of South Korea's most popular delicacies is regularly compared to rotting garbage and filthy bathrooms. And that's by fans. The unusual dish is typically made by taking dozens of fresh skate, a cartilage-rich fish that looks like a stingray, stacking them up in a...

Meet First Fish to Leave Endangered List

Tiny Oregon chub is poised for a milestone

(Newser) - It's only about 3 inches long, but the Oregon chub is about to achieve a first among fish: It's coming off the endangered species list, reports Popular Science . The Fish and Wildlife Service announced the move yesterday, though it won't become official until after a 60-day period...

Fish Fossil Challenges Standard View on Evolution

Ancient creature suggests animals developed legs before moving to land

(Newser) - Conventional wisdom has it that the first creatures to emerge from the water eons ago did so without hind limbs. Conventional wisdom, meet Tiktaalik roseae. As the Boston Globe explains, Tiktaalik is a 375-million-year-old fish that swam in what is now the Canadian Arctic. Researchers already knew that the fish...

Scientists Unearth World's Largest Fish

The Leedsichthys grew to up to 50 feet in length

(Newser) - As far as discoveries go, this one is pretty astounding on three counts: It came about by chance, expanded our knowledge of "gigantism," and revealed the world's largest fish. As the Observer reports, two geology students spotted pieces of bone amid the rocks in a quarry in...

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