Tuesday, January 29, 2013

Animal of the Week: Jan 29, 2013 -- Carry on animal

Well, the snowfall in the UK seems like a distant memory now doesn't it? But wasn't it wonderful? Sure we grumbled. And we stood forlorn on platforms wearing Ugg boots or other unsuitable footwear soaking up the puddles of slush, waiting for trains that we knew would never come. We knew the trains wouldn't run and that it was snowing before we left the house, and yet we left the house, and we complained.

BUT THEN WE ALSO HAD LOADS OF FUN! We went sledging using whatever we could find as a sledge, we walked through the hushed woods early in the mornings after fresh snow. We had snowball fights, and we built all manner of exciting snow sculptures. Newspapers, Twitter, and Facebook feeds were filled with great examples of snowmen, snowpugs, snow henges, snow Easter-Island heads, snowdragons, snow-Buzz Lightyears; people's imagination seemed to know no bounds, and, in some cases, no decency...

Tibetan snowcock, the eastermost species.
http://www.flickr.com/photos/mckaysavage/
Snowcocks are five species of bird in the genus Tetraogallus. They are related to partridges and pheasants which they  broadly resemble. The five species in range across the mountains and plateaus of Eurasia, from the Caucasian snowcock in the west to the Tibetan snowcock in the east. The birds live at altitude, sometimes migrating up and down mountains with the seasons.

All species are monogamous, with females incubating the eggs and males standing guard. When not incubating some species are social, forming mixed flocks, providing safety in numbers from their predators such as foxes and eagles.

Thursday, January 10, 2013

In defense of the shoebill



Last night many people were gripped by the BBC’s visually stunning new wildlife series Africa. As has been the wont of wildlife filmmakers since the dawn of time, the Africa crew toyed with our emotions throughout. Baby gorillas stared the camera in its lens and the viewer in her primeval ovaries, a drought-starved baby elephant breathed its last as its mother tried to nudge it back to life tenderly with a foot the size of a tree stump, later a new baby elephant frolicked in rain-refreshed pastures (you could almost hear strains of Sir Elton John’s Circle of Life begin to play beneath the already intrusive underscoring). But the thing that riled Twitter the most was the outright evil of the shoebill.

A shoebill, not a human
A nest of two chicks, one of the chicks was a few days older than the other, its head-start in life meant that it was bigger and could muscle its way to food ahead of its sibling, meaning that it grew faster and the size gap increased. As the difference grew, the larger chick got even more food, and eventually, seizing every advantage while the mother was away searching for catfish in the limpid pools of a dense swamp, we saw the large chick pummelling the other with its massive beak. Feathers flying, the weaker chick seemed done for. But then the mother returned to restore order…oh, wait. The mother returned, but shunning the weaker embattled chick she gives the bigger one food and lavishes all her care on this avian Cain. WHY? WHY CAN’T SHE LOOK AFTER THE WEAK? Twitter was alive with people shocked and appalled: for at least half an hour shoebills were officially more despicable, less caring, and warranted our opprobrium more than the Coalition Government on welfare-reform Tuesday.

But what people seem to forget, easily done given the nature of the documentary and its wanton emotional toying with the viewer, is that THESE ARE BIRDS. It would be easy to point out 101 things more inherently preposterous, destructive, uncaring, and designed to screw over our fellow human beings that people do before midday each day (most of them on the tube in London), but that would be continuing in the anthropomorphism of the show. I could also point out that in every series of Springwatch, we watch in fear that the barn owls won’t find enough voles and the older chicks will eat their way through their younger and smaller siblings to make up the calorie deficit – so this siblicide is nothing out of the ordinary, and many birds lay extra eggs as insurance policies, expecting that some offspring will not make it. But rather, I’d like to take a paragraph to celebrate the wonderful shoebill. A bird that, when  I first saw it on a nature documentary as a youngster, helped to spark my interest in evolution and ecology.

Shoebills (Balaeniceps rex) are massive long-legged wading birds. Resembling a cross between a heron and a pelican designed by Jim Henson and viewed in a distorting mirror, they are unmistakable with anything else and utterly unique. Their uniqueness belies their evolutionary history, which is something of a mystery. The birds are in a taxonomic family on their own. On the basis of their shape and feeding habits (stalking fish in the reedbeds of East Africa’s swamps) they have been allied with storks and herons, but DNA analysis suggests they are more closely related to pelicans. Their closest living relative is almost certainly the hammerkop, another curious African bird also of murky evolutionary affinities. Shoebills specialise in hunting catfish and lungfish in shallow or dwindling pools of vast swamps; these fish come to the surface to take gulps of air, at which point a patiently waiting shoebill will strike. Their massive bills (which give them both their English name and their latin genus name Balaeniceps [meaning “whale head”]) enable them to capture larger fish than other stalking waders such as herons and storks, and unlike these birds they can also tear larger prey apart rather than having to swallow it whole. The fossil record of shoebill ancestors is sparse, with some clear relatives from 30 million to 25 million years ago, but not much else. Given their remarkable size, striking appearance, and impenetrable habitat, it’s no surprise the shoebill is one of the species top on the list of any birdwatcher visiting Africa. And when you watch Africa, just remember, they’re only doing what they need to do to survive. They may not be cute, or dying, but they are pretty fricking amazing if you ask me.

Tuesday, January 08, 2013

Animal of the Week January 7, 2013 -- HOW MUCH?!

What's the most expensive animal?

Well, unsurprisingly the record stands with a racehorse: the most expensive I could find was The Green Monkey, a 2 year old colt that sold in 2006 for $16 m before going on to earn his new owners around $10 000 on the racetrack and being retired in 2010 having not won a single race. The Green Monkey is now a stud horse, earning his pimps $5000 a pop. The $16 million was generated through a bidding war between two racehorse-owner rivals clearly with more money and pride than sense. Although $16 million is exceptional, it is not so outlandish: a great racehorse can earn several million in its racing career and as stud animals, tens of millions. The owners of unbeaten racehorse Frankel, for example, charge £125 000 (about $200 000) to mate a mare with him (no foal, no fee!), and stud fees of $500 000 are not unheard of.

But outside the world of equestrianism, the week's animal, Thunnus orientalis (Pacific bluefin tuna) has set a new record for fish, selling for $1.7 million. Kiyoshi Kimura, president of Kiyomura Co, paid the record sum to buy the 222 kg fish for the company's Sushi-Zanmai sushi chain.

The pacific bluefin tuna is a large predatory fish of the same family as mackerel. They can reach a 3 m in length and weigh up to 450 kg. Their close relatives, the Atlantic bluefin (Thunnus thynnus) can reach up to 4.5 m in length and weigh over 600 kg. Tuna meat is popular for sushi and sashimi in Japan, and thin strips of the the fatty belly meat of bluefin tuna, called O-Toro, can cost $25 each. Some of the world's bluefin tuna stocks are in sharp decline, including the large Atlantic bluefin, but the Pacific bluefin stocks seem to be doing OK for now. But such crazy prices, and the dwindling of other stocks, are only likely to increase exploitation.

The components of the fish are in no way worth the amount paid, but the first fish sale of the year at the Tsukiji Fish Market (the largest fish market in the world) in Tokyo is traditionally a place for people to show off by paying well over the odds. Last year, Kimura set a new record, but paid only about a third of this years price for a slightly larger fish. But who can put a value on the global exposure of Sushi-Zanmai generated by this news story? How much are these inches in AOTW worth?

For those of you about to tuck into a tuna mayonnaise sandwich, it's probably not bluefin, but most likely skipjack. And skipjack tuna, despite being the 2nd most captured fish (by number) in 2009, has fairly healthy stocks. And the most captured fish? The delicious delicious anchovy.
 
Here is an interesting list of some other costly animals. Including a million dollar tibetan mastif. And here is a very striking looking million-pound sheep. I hope none of these tales is made up like that recounted in "poetic" form when sheep were AOTW.

And finally, a former sushi related AOTW