A fisher in China's Fujian province hauling home his catch of the day, a giant whale shark that reportedly weighed two tons and was 16 feet long. Read the rest
Read the rest
Absolutely breathtaking great white shark footage captured by Woods Hole Oceanographic Institution researchers using their SharkCam underwater drone near Mexico's Guadalupe Island.
REMUS SharkCam is a specially outfitted REMUS-100 autonomous underwater vehicle (AUV) equipped with video cameras and navigational and scientific instrumentation that enable it to locate, track, and film up close a tagged marine animal, such as a North Atlantic white shark (great white). The vehicle is pre-programmed to home in on a signal from a transponder beacon attached to the animal at depths up to 100 meters (330 feet) and in a variety of patterns and configurations.
Australian scientists are seeking a "mystery sea monster" that likely swallowed a 9-foot great white shark. Most likely, it was an even bigger great white shark, specifically a 2-ton "colossal cannibal great white shark." Read the rest
Read the rest
Scuba diver Jason Dmitri's encounter with a shark was caught on film, but he bears no grudge for the beast that tried to get a piece of him.
"The shark was acting in his natural environment," Dmitri wrote on his YouTube page. "I have no ill will toward him and will get back in the water and continue to protect the reef for future generations."
Marine Biologist, blogger, and science-tweeter David Shiffman sends word to Boing Boing readers of a wonderful opportunity to support shark research, and have a close encounter of your own with these beautiful creatures:
Have you always wanted to be a marine biologist? Have you been fascinated by sharks since you were young? For me, the answer to both questions is yes...and I'm currently living my childhood dream! I'd like to invite you to join me for a day of shark research with my lab, the University of Miami's RJ Dunlap Marine Conservation Program (SharkTagging.com and Facebook.com/SharkTagging). I'm participating in the 4th SciFund Challenge (SciFundChallenge.org), a crowd-funding event for scientific research.
Last week, scientists described a new species of hammerhead shark, the Carolina hammerhead. Though slightly smaller than the scalloped hammerhead species it was previously thought to be a part of, the Carolina hammerhead was ID'd as something different with the help of DNA samples, not visual descriptions. This, courtesy shark blogger David Shiffman, is the Carolina hammerhead's head, in beautiful x-ray vision.
Researchers from the University of Delaware snapped this fantastic photo of a dogfish swallowed by a sand tiger shark. The scientists were in the Delaware Bay seeking tagged sharks to better understand their behavior.
"This unlucky smooth dogfish couldn't resist the menhaden used as bait and, unfortunately, fell victim to one of the top predators in the bay," according to a posting by the University's Ocean Exploration, Remote Sensing, Biogeography (ORB) Lab. "The dogfish was about 3 feet (1 meter) long and completely swallowed by the sand tiger shark."
Psst, hey kid. You wanna see some clips from the dissection of one of the largest mako sharks ever caught? Sure you do.
This NOAA video has amazing footage of the shark's stomach — so big it fills a tall Rubbermaid tub — and the even more amazing footage of scientists lifting an almost completely intact sea lion head out said shark's stomach.
What's the benefit? Studying the stuff in a shark's stomach helps us understand how different species are interrelated — which helps scientists figure out how to better manage the conservation of whole ecosystems. Essentially, write the good folks at Smithsonian.com, this is an example of scientists making valuable use out of a not-exactly-ideal situation. The shark was legally caught and killed by fishermen filming a scene for a reality TV show.
About 200 million people go to U.S. beaches each year. About 36 of those hundreds of millions are attacked by sharks. Most of them survive. In contrast, more than 30,000 of those millions of beach-goers are to be rescued from surfing accidents. And many of those humans each year die, or must be rescued, from drowning incidents in which no other creature is to blame.
So, will we see Human Week, or Human-nado mockumentaries any time soon?
A fisherman from Victoria, Australia, climbed inside the shark he had captured, poked an arm through its lifeless gills, and staged this incredible shot for posterity. From Perth Now:
First reported by 3AW, a radio station in Australia, the fisherman isn't named. But show host Ross Stevenson declared it their "photo of the year" on the spot. [via Gawker]
"An American couple have turned up at the Metung Hotel to see this photo and their immediate response from the wife was 'Did he survive!?'." The fisherman was standing right behind her at the time. Presumably, his answer was "yes".
This is an older piece, but given that we're into hurricane season, I expect it will come up again. How do you tell if the photo you've been forwarded, showing sharks swimming through flooded urban landscapes, is real or fake? Marine biologist (and shark expert) David Shiffman has a simple 5-step process. In fact, it's so simple that I'm sure many of you will already be familiar with these tricks. But, here's the thing, it's helpful to be reminded that the tricks are necessary. They're very easy to forget when a hurricane is crashing into shore and social media is blowing up. Besides which, this will make a handy link to forward to friends and family passing questionable photos of all sorts.
Shanghai's Orient shopping centre experienced disaster on Dec 18 when a huge aquarium filled with lemon-sharks, turtles and fish ruptured, hurting 16 people and killing three sharks and "dozens of turtles and small fish." The tank's failure was blamed on a combination of cold temperatures and substandard materials.
Editorial note — Cow Week is a tongue-in-cheek look at risk analysis and why we fear the things we fear. It is inspired by the Discovery Channel's Shark Week, the popularity of which is largely driven by the public's fascination with and fear of sharks. Turns out, cows kill more people every year than sharks do. Each day, I will post about a cow-related death, and add to it some information about the bigger picture.
Some cow-related deaths are accidental, or at least understandable. When humans and animals live and work in close proximity, it's not surprising that humans sometimes do things that startle or scare the animals. And when 500-pound animals are scared, bad things can happen.
Other times, though, it really seems like the cows are out to get us. Take this story, related in the July 31st issue of The Times of India. Bhoop Narayan Prajapati, a 65-year-old resident of Deori Township in the Sagar district of Madhya Pradesh, was gored by a bull and later died of his wounds. But, the death turns out to be the culmination of a months-long feud between Prajapati and the bull, centered around Prajapati's attempts to get the bull to stop sitting in front of the door to his house.
Prajapati threw a cup of hot water at the bull one morning. The next day, the bull came back and gored him. But that wasn't quite enough.
Much to people's surprise, the bull reached the hospital following Prajapati. Deepak Chourasia, a town-dweller, said that when the mortal remains of the old man were being consigned to flames the bull again sprang a surprise by arriving at the crematorium.
There is a minor history between Prajapati and the bull. Six month ago, the bull had attacked the old man after he hit the animal with a stick. Prajapati was at that time admitted to a hospital where he stayed for more than a month due to leg injury, Deori police station inspector R P Sharma told TOI.
Yesterday, I told you about how cows kill more people every year than sharks, even though sharks are (by far) the more-feared species. Today, let's look at this from the shark's perspective. Turns out, sharks are actually threatened ... by us. Yes, they have pointy teeth, but we have harpoons and nets.
In a 2010 article for Our Amazing Planet, Charles Q. Choi reported that as many as 1/3 of all shark and ray species in the world are at risk of dying out. Most of the deaths are accidental. Sharks can simply end up caught in nets meant for other animals. But there's also a thriving trade in shark fins and plenty of money to be made in allowing fishermen to hunt sharks for sport. Overall, humans intentionally kill upwards of 73 million sharks a year, according to a 2009 New York Times editorial.
Read the rest of the Times of India cow death story
Read Charles Q. Choi's piece on the risk of shark extinction
Read the New York Times editorial on the death of sharks
Read a 2007 interview with Jean-Michel Cousteau on the threat to sharks and how to save them.
• Cow Kills Irish Pensioner
Cow-related death story via Alston D'Silva
The Australian blacktip shark lives in tropical waters. The common blacktip shark prefers its water subtropical and temperate. Because of the difference in habitat, these two animals have become separate subspecies with distinct physical differences.
However, there are some places where their habitats overlap. And here, along the eastern coast of Australia, there is interspecies nookie. And hybrid baby sharks.
Now, none of that is particularly shocking. Hybrid zones, where the habitats of two genetically compatible species overlap, aren't ridiculously common, but scientists have documented quite a few. What makes this finding interesting is that the two species and their hybrid have been genetically documented. Hybrid zones can be fuzzy places. What happens there calls into question how sure we can be that that what we call species really are all that different from one another.
What makes this study interesting is that researchers actually performed genetic testing on sharks caught in the hybrid zone. They found distinct genetic differences between the blacktip and Australian blacktip sharks, especially in their mitochondrial DNA. And the hybrids were identified based on genetics as well. That's something that's a lot more rare in the study of wild hybrids. The information gathered here could end up having a lot to teach us about how evolution happens and what speciation really means.
Via Mo Costandi
Police in Milton, New Hampshire, found the carcass of a shark in woods more than an hour's drive from the sea.
Officers from the Milton police and New Hampshire Fish and Game were called, and after their investigation, decided to leave the shark where it was dumped and let nature take its course.
The mystery of Jabberjaw, who has not been seen since 1979, may finally be solved.