Showing posts with label Japan. Show all posts
Showing posts with label Japan. Show all posts
Sunday, September 27, 2009
Monday, August 24, 2009
Saturday, July 25, 2009
Thursday, July 23, 2009
Tuesday, December 30, 2008
Monday, November 03, 2008
Axolotl
Not content with being a Scrabble buff's get-out-of-jail card when he has an 'X', the axolotl is perhaps the most naturally photogenic animal on Planet Earth. I mean, it doesn't even have to try! It just has this goofy smile plastered across its face.
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The axolotl (aːʃoːloːtɬ), Ambystoma mexicanum, is the best-known of the Mexican neotenic mole salamanders belonging to the Tiger Salamander complex. Larvae of this species fail to undergo metamorphosis, so the adults remain aquatic and gilled. The species originates from the lake underlying Mexico City and are also called ajolote (which is also the common name for Mexican Mole Lizards). Axolotls are used extensively in scientific research due to their ability to regenerate most body parts, ease of breeding, and large embryos. They are commonly kept as pets in the United States, Great Britain (under the spelling axlotl), Australia, Japan (sold under the name wooper rooper (ウーパールーパー, Ūpā Rūpā?)) and other countries.
Axolotls should not be confused with waterdogs, the larval stage of the closely related Tiger Salamanders (Ambystoma tigrinum and Ambystoma mavortium), which is widespread in much of North America which also occasionally become neotenic, nor with mudpuppies (Necturus spp.), fully-aquatic salamanders which are unrelated to the axolotl but which bear a superficial resemblance.
As of 2008, axolotls are near extinction, due to urbanization in Mexico City, and polluted waters. Nonnative fish have also recently been introduced to the waters. These new fish have been eating the axolotls' babies, as well as its primary source of food. The axolotl is currently on the International Union for Conservation of Nature's annual Red List of threatened species.
Source: Wikipedia
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Mexico City's 'water monster' nears extinction
By DAVID KOOP, Associated Press Writer David Koop, Associated Press Writer – Sun Nov 2, 1:14 pm ET
MEXICO CITY – Beneath the tourist gondolas in the remains of a great Aztec lake lives a creature that resembles a monster — and a Muppet — with its slimy tail, plumage-like gills and mouth that curls into an odd smile.
The axolotl, also known as the "water monster" and the "Mexican walking fish," was a key part of Aztec legend and diet. Against all odds, it survived until now amid Mexico City's urban sprawl in the polluted canals of Lake Xochimilco, now a Venice-style destination for revelers poled along by Mexican gondoliers, or trajineros, in brightly painted party boats.
But scientists are racing to save the foot-long salamander from extinction, a victim of the draining of its lake habitat and deteriorating water quality. In what may be the final blow, nonnative fish introduced into the canals are eating its lunch — and its babies.
The long-standing International Union for Conservation of Nature includes the axolotl on its annual Red List of threatened species, while researchers say it could disappear in just five years. Some are pushing for a series of axolotl sanctuaries in canals cleared of invasive species, while others are considering repopulating Xochimilco with axolotls bred in captivity.
"If the axolotl disappears, it would not only be a great loss to biodiversity but to Mexican culture, and would reflect the degeneration of a once-great lake system," says Luis Zambrano, a biologist at the Autonomous University of Mexico, or UNAM.
The number of axolotls (pronounced ACK-suh-LAH-tuhl) in the wild is not known. But the population has dropped from roughly 1,500 per square mile in 1998 to a mere 25 per square mile this year, according to a survey by Zambrano's scientists using casting nets.
It has been a steep fall from grace for the salamander with a feathery mane of gills and a visage reminiscent of a 1970s Smiley Face that inspired American poet Ogden Nash to pen the witticism: "I've never met an axolotl, But Harvard has one in a bottle."
Millions once lived in the giant lakes of Xochimilco and Chalco on which Mexico City was built. Using four stubby legs to drag themselves along lake bottoms or their thick tails to swim like mini-alligators, they hunted plentiful aquatic insects, small fish and crustaceans.
Legend has it that Xolotl — the dog-headed Aztec god of death, lightning and monstrosities — feared he was about to be banished or killed by other gods and changed into an axolotl to flee into Lake Xochimilco.
The axolotl's decline began when Spanish conquerors started draining the lakes, which were further emptied over time to slake the thirst of one of the world's largest and fastest-growing cities. In the 1970s, Lake Chalco was completely drained to prevent flooding. In the 1980s, Mexico City began pumping its wastewater into the few canals and lagoons that remained of Xochimilco.
About 20 years ago, African tilapia were introduced into Xochimilco in a misguided effort to create fisheries. They joined with Asian carp to dominate the ecosystem and eat the axolotl's eggs and compete with it for food. The axolotl is also threatened by agrochemical runoff from nearby farms and treated wastewater from a Mexico City sewage plant, researchers say.
Local fisherman Roberto Altamira, 32, recalls when he was a boy, and the axolotl was still part of the local diet.
"I used to love axolotl tamales," he says, rubbing his stomach and laughing.
But he says people no longer eat axolotls, mainly because fishermen almost never find them.
"The last one I caught was about six months ago," says Altamira, a wiry gondolier with rope-like muscles from years of poling through Xochimilco's narrow waterways.
Meanwhile, the axolotl population is burgeoning in laboratories, where scientists study its amazing traits, including the ability to completely re-grow lost limbs. Axolotls have played key roles in research on regeneration, embryology, fertilization and evolution.
The salamander has the rare trait of retaining its larval features throughout its adult life, a phenomenon called neoteny. It lives all its life in the water but can breathe both under water with gills or by taking gulps of air from the surface.
On a 9-foot-wide canal covered by a green carpet of "lentejilla" — an aquatic plant that resembles green lentils — Zambrano's researchers test water quality and search for axolotls. The air smells of sulfur and sewage.
A team member suddenly points to the trademark water ripple of an axolotl, and the crew hurls its net. But they only come up with two tilapia in a sopping-wet mass of lentejilla.
So far, scientists disagree on how to save the creature. But a pilot sanctuary is expected to open in the next three to six months in the waters around Island of the Dolls, so-called because the owner hangs dolls he finds in the canals to ward off evil spirits.
Zambrano proposes up to 15 axolotl sanctuaries in Xochimilco's canals, where scientists would insert some kind of barrier and clear the area of nonnative species.
Without carp, the water would clear, and plants the axolotl needs to breed could flourish again, said Bob Johnson, the curator of amphibians and reptiles at the Toronto Zoo.
"If you take the insults away, the lake has an amazing latent potential to heal itself," he said.
Veterinarian Erika Servin, who runs the Mexico City government's axolotl program at Chapultepec Zoo, is studying the possibility of introducing axolotls from the lab into the canals. But more study is needed to make sure the process doesn't lead to diseases and genetic problems from inbreeding.
Xochimilco residents could be another source of resistance.
Hundreds of people make a living pulling tilapia from canals or growing flowers, lettuce and vegetables on nearby land. Efforts to remove the fish or shut down polluting farms could face stiff opposition.
But while the debate goes on, time is running out.
Given its role in research alone, Johnson says, "We owe it to the axolotl to help it survive."
Related posts:
Australia,
Aztec,
Great Britain,
Japan,
lizard,
Mexico,
Mexico City,
salamander,
Scrabble,
USA,
Venice
Wednesday, October 29, 2008
Panty hose tug-of-war
Thursday, October 16, 2008
Massa takes Hamilton out
Ferrari & Massa say it was accidental, and I believe them, but look at the reaction of the Ferrari mechanics!
Related posts:
F1,
Felipe Massa,
Ferrari,
Formula One,
Fuji Speedway,
Japan,
Lewis Hamilton,
McLaren Mercedes
Monday, August 04, 2008
E-cow-nomics
SOCIALISM: You have 2 cows, so you give one to your neighbour.
COMMUNISM: You have 2 cows. The State takes both and gives you some milk.
FASCISM: You have 2 cows. The State takes both and sells you some milk.
NAZISM: You have 2 cows. The State takes both and shoots you.
TRADITIONAL CAPITALISM: You have two cows. You sell one and buy a bull. Your herd multiplies, and the economy grows. You sell them and retire on the income.
MALAYSIAN BUMIPUTRAISM: You have two cows, the State takes one and gives it to your bumiputra neighbour. From the milk you sell from the remaining cow you buy a bull and mulitply your herd. The State takes 30 per cent of your herd as it grows and give them to your bumiputra neigbour. Your bumiputra neighbour has a kenduri each time they receive a cow.
UMNOPUTRAISM: The State takes 30 per cent of your herd and parks them in Switzerland in the name of some UMNO official or close relatives, friends and sons-in-law.
MALAYSIAN GOVERNMENT-LINKED OR BUMIPUTRA CORPORATION: You have two cows.
You employ mainly bumiputras to milk them. But both cows have been sent to the kenduri, so the State gives you more cows and write off the losses of the first two. After several kenduris later, you invite an American or German Corporation to turn around the losses. The Japanese have however already taken their two original cows back home to Japan.
AN AMERICAN CORPORATION: You have two cows. You sell one, and force the other to produce the milk of four cows. Later, you hire a consultant to analyse why the cow has dropped dead.
A FRENCH CORPORATION: You have two cows. You go on strike, organise a riot, and block the roads, because you want three cows.
A JAPANESE CORPORATION: You have two cows. You redesign them so they are one-tenth the size of an ordinary cow and produce twenty times the milk. You then create a clever cow cartoon image called 'Cowkimon' and market it worldwide.
A GERMAN CORPORATION: You have two cows. You re-engineer them so they live for 100 years, eat once a month, and milk themselves.
AN ITALIAN CORPORATION: You have two cows, but you don't know where they are. You decide to have lunch.
A SWISS CORPORATION : You have 5,000 cows. None of them belong to you. You charge the owners for storing them.
A CHINA CORPORATION: You have two cows. You have 300 people milking them. You claim that you have full employment, and high bovine productivity, and arrest the newsman who reported the real situation.
AN INDIAN CORPORATION: You have two cows. You worship them.
A BRITISH CORPORATION: You have two cows. Both are mad.
A MALAYSIAN CORPORATION: You have two cows. You signed a 40-year contract to supply milk at RM0.06 per litre. Then midway through, you raised the price to RM0.60 or you cut the supply. When the buyer agrees to the new price, you change your mind again and now want RM1.20.
The buyer decided you can keep the milk, who rather go look for milk that comes from recycled cows or the cow urine instead. At the end your two cows retire together with the Prime Minister.
A SINGAPOREAN CORPORATION: You have two cows. Whenever prices of GST, ERP, PUB and kopi-si go up; one cow-peh and the other cow-bu.
COMMUNISM: You have 2 cows. The State takes both and gives you some milk.
FASCISM: You have 2 cows. The State takes both and sells you some milk.
NAZISM: You have 2 cows. The State takes both and shoots you.
TRADITIONAL CAPITALISM: You have two cows. You sell one and buy a bull. Your herd multiplies, and the economy grows. You sell them and retire on the income.
MALAYSIAN BUMIPUTRAISM: You have two cows, the State takes one and gives it to your bumiputra neighbour. From the milk you sell from the remaining cow you buy a bull and mulitply your herd. The State takes 30 per cent of your herd as it grows and give them to your bumiputra neigbour. Your bumiputra neighbour has a kenduri each time they receive a cow.
UMNOPUTRAISM: The State takes 30 per cent of your herd and parks them in Switzerland in the name of some UMNO official or close relatives, friends and sons-in-law.
MALAYSIAN GOVERNMENT-LINKED OR BUMIPUTRA CORPORATION: You have two cows.
You employ mainly bumiputras to milk them. But both cows have been sent to the kenduri, so the State gives you more cows and write off the losses of the first two. After several kenduris later, you invite an American or German Corporation to turn around the losses. The Japanese have however already taken their two original cows back home to Japan.
AN AMERICAN CORPORATION: You have two cows. You sell one, and force the other to produce the milk of four cows. Later, you hire a consultant to analyse why the cow has dropped dead.
A FRENCH CORPORATION: You have two cows. You go on strike, organise a riot, and block the roads, because you want three cows.
A JAPANESE CORPORATION: You have two cows. You redesign them so they are one-tenth the size of an ordinary cow and produce twenty times the milk. You then create a clever cow cartoon image called 'Cowkimon' and market it worldwide.
A GERMAN CORPORATION: You have two cows. You re-engineer them so they live for 100 years, eat once a month, and milk themselves.
AN ITALIAN CORPORATION: You have two cows, but you don't know where they are. You decide to have lunch.
A SWISS CORPORATION : You have 5,000 cows. None of them belong to you. You charge the owners for storing them.
A CHINA CORPORATION: You have two cows. You have 300 people milking them. You claim that you have full employment, and high bovine productivity, and arrest the newsman who reported the real situation.
AN INDIAN CORPORATION: You have two cows. You worship them.
A BRITISH CORPORATION: You have two cows. Both are mad.
A MALAYSIAN CORPORATION: You have two cows. You signed a 40-year contract to supply milk at RM0.06 per litre. Then midway through, you raised the price to RM0.60 or you cut the supply. When the buyer agrees to the new price, you change your mind again and now want RM1.20.
The buyer decided you can keep the milk, who rather go look for milk that comes from recycled cows or the cow urine instead. At the end your two cows retire together with the Prime Minister.
A SINGAPOREAN CORPORATION: You have two cows. Whenever prices of GST, ERP, PUB and kopi-si go up; one cow-peh and the other cow-bu.
Tuesday, January 29, 2008
Microteaching
Kena massacred for microteaching, but I didn't even get the worst of it. Two others got it worse, including one for speaking out of turn. At least it's over.
There really isn't much reason to come on Tue and Thu any more since we're just observing our peers. I will go see Dr Hia tomorrow afternoon before he flies to Japan. Makes sense.
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19 Jan 2008, 2259hrs
Supposedly after TA, microteaching is peanuts. Well apparently I'm a monkey with digestive problems, because the same problem of mental block and creative haemorrahage seemed to happen when I was doing my lesson plan. The ideas just don't seem to flow. Can't explain it. Well, at least the lesson plan is done and ready for Thursday.
There really isn't much reason to come on Tue and Thu any more since we're just observing our peers. I will go see Dr Hia tomorrow afternoon before he flies to Japan. Makes sense.
-----------
19 Jan 2008, 2259hrs
Supposedly after TA, microteaching is peanuts. Well apparently I'm a monkey with digestive problems, because the same problem of mental block and creative haemorrahage seemed to happen when I was doing my lesson plan. The ideas just don't seem to flow. Can't explain it. Well, at least the lesson plan is done and ready for Thursday.
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