The
Burning Frog
The
burning frog, Bombina torrens,
is native to central Europe, and, to this
day, the only known social species of the Anura order. Living in
familial groups, the frogs generally occupy a territory with at least
one watersource used for breeding (some territories have been
observed to contain more than ten such breeding ponds). Females will
remain with their family, and lay there eggs in the territorial
ponds. Males, once they exit the water, will disperse, and mate with
females from other families. This alone makes the bruning frog a
uniquely fascinating species, since such organised social behavior is
virtually non-existent in other amphibians, But the burning frog has
more to offer than family fun.
The
mucus of the burning frogs' skin is rich in hydroquinine, and,
through a mechanism well-known from the bombardier beetles, when
stressed, it can release hydrogen peroxide from vesicles in its skin
cells, causing a chemical reaction that raises the temperature of the
mucus on its skin to almost 100 ºC, causing it to evaporate. The
reaction can be so fast, it almost seems as if the frog explodes in a
cloud of steam. In addition, the frogs' mucus is toxic, and, when
evaporated, will cause irritation to the skin, watering eyes, and a
burning sensation in the throat and nose. The process is, of course,
extremely demanding of the frogs themselves, and can lead to their
death. It is used most often
during the period when the
new tadpoles grow, and is though to be mainly a way of protecting the
young. Once the offspring has grown out of the water, it is very rare
to see burning frogs use the defence mechanism.
Tim
Rats, of the University of Europeville's history
department, has recently found texts that suggest that the frogs were
effectively used as crowd control devices durin the middle ages.
Lords would keep the frogs in captivity, in small basins of water,
artifically maintaining them in a state of constant reproduction
through artifical light and warmth. When there was a riot, or the
castle was attacked by enemies, they would dump the basins full of
frogs on the offenders, causing the frogs to burst into steam, and
intoxicating the assailants.
In
popular culture, “throw the frog” is a game played by many young
adults to this day. A group of young people will take a burning frog
in their hands as gently as possible, and then throw it to each
other. The goal is to catch the frog as gently as possible, to avoid
it bursting into steam. Whoever sets it off looses.
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