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 Does Koi have teeth - riddle of 11 tiny teeth

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PostSubject: Does Koi have teeth - riddle of 11 tiny teeth   Does Koi have teeth - riddle of 11 tiny teeth Icon_minitimeWed Sep 26, 2007 2:44 pm

Extract from the Star Newspaper, Toddlers, Koi and Tooth Fairy all suspects as cops chew over toothy riddle

January 16, 2007 Edition 1

Alex Eliseev

JOHANNESBURG: It's the riddle of 11 tiny teeth - and police are investigating just how they landed up in the swimming pool filter of a home.

Last week a man walked into the Sandton Police Station with a bag containing what appears to be 11 little white teeth, a police source said yesterday.

In his statement the resident claimed he had discovered the teeth in a newly-installed swimming pool in his sister's Khyber Rock house in Johannesburg.

Before going to the police the man approached a local vet, but was told they did not belong to an animal (such as a dog or cat).

Hearing this, he grew "very concerned".

On Thursday, the man gave the police a statement detailing his strange discovery. The 11 teeth were sealed and placed in the police's SAP 13 safe - as they would be later sent for forensic tests.

Although the case was a bizarre one, and there was no body or crime scene, police opened an inquest and a detective was assigned to the case. It was feared that the milk teeth belonged to a toddler, or several toddlers as they are too small to belong to an adult.

Yesterday investigators once more spoke to the man and were told he had discovered more teeth.

In total about 80 similar teeth were recovered from the swimming pool filter, the source revealed.

The man also told officers that the swimming pool had been built about three weeks ago on top of what used to be a Koi fish pond. The man suggested the teeth belonged to the Koi, and he apologised for wasting the police's time.

There was just one small problem with the man's theory - Koi fish don't have teeth.

Two fish experts were consulted yesterday to confirm that Koi, known as "water pigs", do not hunt and mostly tend to be vegetarian in their diet.

They scavenge in the water for food particles or tiny insects.

Their jaws do have a "rough cartilage" but definitely no teeth.

"It's impossible," the experts agreed. It is, however, unclear whether the teeth could belong to another type of fish.

While they sink their teeth into the mystery, some investigators have a more light-hearted theory on the case and suggest that what has been unearthed is the secret hiding place of the elusive Tooth Fairy.
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PostSubject: Teeth   Does Koi have teeth - riddle of 11 tiny teeth Icon_minitimeFri Sep 28, 2007 3:32 pm

In the September issue of Country Life (p. 104 & 105) is an article on Chinese Grass Carp (Ctenopharyngodon idellus). In the article is a photograph of discarded teeth from immature fish.
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PostSubject: Re: Does Koi have teeth - riddle of 11 tiny teeth   Does Koi have teeth - riddle of 11 tiny teeth Icon_minitimeFri Sep 28, 2007 3:48 pm

There were a follow up article in the star confirming that Koi does have teeth:

Something fishy about teeth found in pool
January 18, 2007 Edition 1

Alex Eliseev

The police investigation into a bizarre discovery of 80 tiny teeth in the swimming pool filter of a Johannesburg home is proving to be a fishy affair.

Officers from the Sandton police station opened an inquest after a man from Khyber Rock, Sandton, brought them a sample of 11 small teeth in a plastic bag.

The homeowner had grown very concerned after consulting a vet and being told they did not belong to an animal such as a cat or dog. A few days after the case was opened, police phoned the man and were told that a koi pond had recently been converted into the swimming pool where the teeth were found. These teeth, the man suspected, belonged to the fish that occupied the koi pond.

Yesterday he told The Star that a rain storm could have somehow brought the teeth up and washed them into the filter.

He said the police had not been back to collect the other teeth - which will now have to go for forensic tests. He was convinced that the teeth belonged to the koi.

"There is nothing to investigate, but I don't mind if they do. Once a case is opened, police are obliged to investigate."

Previously, two koi experts had told The Star that koi do not have teeth. But it appears they did not look deep enough.

According to Caroline Crump, a lecturer and zoological curator of Wits University's life sciences museum, koi do have small, molar-like teeth in the back of their throats. In fact, each fish has 10 and can go through 36 different sets in a lifetime.

Initially police feared that the teeth belonged to a human toddler or several toddlers.
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PostSubject: Koi teeth   Does Koi have teeth - riddle of 11 tiny teeth Icon_minitimeFri Sep 28, 2007 4:26 pm

Hi

I googled Koi teeth and found this article on www.koivet.com (http://www.koivet.com/html/articles/articles_results.php?article_id=147&category=11&search_term=teeth).

The pics are - well, see for yourself.


Koi teeth
Koi teeth are for crushing vegetation and crustacean shells while sifting sand in the rivers' bottom. The teeth are so far back in the throat that they are not a human health hazard. In fact, in the largest fish the teeth are so far back you couldn't reach them with your finger. The teeth project upwards from the last gill arch and crush against a diamond-shaped boney plate in the roof of the oropharynx.

"Teeth are constantly shed and replaced in healthy Koi. The teeth of the largest fish are almost as large as human molars and resemble them quite closely." Doc Johnson

+ Note From Doc Johnson
"Art Lembke once told me he would try to put a gold crown on a large tooth if I ever sent him one....I wonder if someday I will." Doc Johnson
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