Thursday, November 24, 2005

A fascinating tidbit apparently hidden within a new scientific paper that will, I'm sure, delight my step-brother to no end:

This tasty bit of information involved monitor lizards, such as the Komodo dragon. The conventional wisdom has been that these lizards kill by infecting their prey with bactera during a bite, featured on many sites such as this one:

[The komodo dragon] can run as fast as a dog for short stretches and prey they merely injure are brought down shortly by the deadly bacteria in their mouths.


and this one:

[The komodo dragon's] saliva is not venomous, but the mouth of a Komodo dragon is so full of bacteria that a bite from one almost always leads to infection. If untreated, the infection is usually fatal.


Only thing is, it's wrong. I can't say how much bacterial infection plays a role in the killing of a komodo dragon's prey, but the research by Fry's group shows that indeed, these lizards are capable of producing venom, via previously undescribed venom glands. (Carl Zimmer has posted a figure from the Nature paper; the komodo dragon is in the Varanidae group).

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