Monday, May 4, 2009

Searchers Set Record Finding Meteorites

The luminous fireball that lit up Alberta and Saskatchewan's night sky last fall, previously covered on Markit Science (Meteorite Spotted + Found!), has set a Canadian record for the number of meteorites recovered from a single fall. Scientists from University of Calgary have searched for the scattered remnants and have found more than 1000 fragments in fields near Lloydminster on the Alberta-Saskatchewan boundary.

This beat the previous record of 700 pieces set after a meteor hit the ground in central Alberta in 1960. Now that the snow has melted, the search continues, and Alan Hildebrand says they are finding dozens of meteorites a day.

Saturday, March 21, 2009

Skeletons For Sale

Going once, going twice, SOLD! If you are a serious fossil collector, and can afford the hefty cost, those might be the words you'd hear at a Natural History Auction hosted by I.M. Chait Gallery/Auctioneers on Saturday, March 21 in New York City.

Shown above is Lot 250: a mounted complete skeleton of a Dryosaurus dinosaur from the Jurassic Era. There are only two in the world, the other is on display at the Carnegie Museum of Natural History in Pennsylvania. Apparently the one for sale is by far the more impressive specimen. It measures 127.5 inches from nose to tail, stands 36 inches high, and was expected to sell for $440,000 - $500,000.

But if dinosaurs are not really your style, perhaps you coule find more interest in Lot 199: a complete skeleton of a juvenile Wooly Mammoth. This 7-foot high, 15-foot long fossil is approximately 20,000 years old. The perfectly preserved specimen was expected to sell for $80,000 - $100,000, appealing to the more thrifty of shoppers.

Seeing Pink Elephants

No, this is not a drunken hallucination. While filming for a BBC wildlife program in Botswana, cameraman Mike Holding spotted this rare pink elephant calf among a herd of approximately 80 elephants. The young elephant is most likely an albino, which diminishes its chances for long-term survival under the scorching African sun. Lengthy exposure might result in blindness and serious skin problems.

Although albinism is considered quite common among Asian species, it is rather rare in the larger African elephants. "This is probably the first documented sighting of an albino elephant in northern Botswana," said Ecologist Dr. Mike Chase, head of the conservation charity Elephants Without Borders.

Although surviving into adulthood will be a difficult task for the baby elephant, Dr. Chase expressed some hope in the creature's ability to adapt and cope with its condition: "I have learned that elephants are highly adaptable, intelligent and masters of survival." He explained that it could seek refuge underneath large trees, or coat itself with thick mud.

"Already the two-to-three-month-old calf seems to be walking in the shade of its mother. This behavior suggests it is aware of its susceptibility to the harsh African sun, and adapted a unique behavior to improve its chances of survival."

Wednesday, March 11, 2009

Fearless "Sharkman"

This shocking picture has been surfacing all over the internet, and has earned Mike Rutzen a global reputation as the "Sharkman". No stranger to the dangers associated with these beasts of the sea, he has over 30 scars on his body from close encounters. This former fisherman aims to change the stigma surrounding the powerful creatures, and hopes that the world will start to view them through his eyes, as smart and sensitive beings.

To succeed in his mission, he has been swimming alongside sharks without the protection of diving cages. He has learned to mimic their body language, by altering his posture in response to their actions. If done properly, the shark will see him neither as prey nor predator, and will merely drift past him. They even allow him to ride along by grasping onto their dorsal fins.

The photo above, showing Mike holding a 13-foot long Grey Reef Shark, is a demonstration of his most startling feat - inducing "tonic immobility" to the shark. Animals sometimes enter into this natural state of paralysis if faced with an imminent threat. However this can also be achieved in sharks by turning them onto their heads and massaging their snouts, between their eyes. The shark will then slip into this catatonic state for almost 15 minutes.

This method has been helpful for scientists wishing to study sharks, even the most dangerous kinds. In fact, by getting so close to a Great White, Mike discovered that their eyes are not black, but rather a dazzling, bright blue.

Sunday, January 11, 2009

Elusive Venomous Mammal

The Hispaniolan solendon waddles around one Caribbean island with its long, thin snout. This shrew-like mammal is capable of injecting its prey with a venom-packed bite. Just like many creatures in these regions, it is threatened by hunting, deforestation, and the introduction of competing species. After a period of dormancy in the media, the mammal was finally filmed in the summer of 2008, when it was spotted in the Dominican Republic. Neighboring Haiti is the only other country where this nocturnal, insect-eating animal can be found.

Dr Richard Young, from Durrell Wildlife Conservation Trust, said: "My colleagues were excited and thrilled when they found it in the trap. "But despite a month's worth of trapping effort, they only ever caught a single individual."

He said: "They are still incredibly vulnerable and fragile. So it is really important to get back out there to work how how these animals are surviving." However, sometimes it can be difficult to focus on important conservation goals in countries like Haiti, where remedying political corruption takes the top spot on the To Do list. Here is a video of the captured: