When
I was a kid, like most kids, I gravitated towards the television on those rare
occasions when my parents did not insist that I play outside. Like most of my generation, there were
various cartoons and kid shows that I enjoyed and one of those was the
smart-alleck, Brooklyn-inspired Bugs Bunny.
Within the show, there were a host of other characters that flittered in
and out but one that struck and fascinated me most was the Tasmanian
Devil. So, it was with interest and a
little sadness to learn that the population of the little marsupials,
exclusively found in the wild on the southern Australian island of Tasmania, is
dying out. However, it is not poachers
or global warming to blame for their demise but a rare and contagious form of
cancer.
This blog is called the Non-Sequitur and I
suppose an article about the near extinction of the Tasmanian Devil would
certainly fit. When I watched the Bugs
Bunny cartoons as a child, I felt sorry for the devil because it seemed as if
it really did not have much control of its surroundings or the things happening
to him. His fierce scream seemed a “rage
against the machine” but, how ironic would it be if the “machine” would actually
manage to save the species. I will continue
to read and learn, keeping abreast of the situation and hope for the best. I'm glad someone is looking out for them.
The
cancer first came to the attention of scientists in the 1990s when, in the
opinion of those following the situation closely, a single female devil
developed a tumor that mutated and spread.
The diffusion of the disease took advantage of a typical devil practice
– fighting. Apparently, the devils fight
by biting one another in the face.
Scientists felt that, during one of these fights, a devil bit the female
in the face, pierced the tumor and the liquid within entered the bloodstream of
her combatant. Scientists first
determined the contagious nature of the cancer when, upon an autopsy of a dead
devil, they discovered the cells of the cancer did not originate from the devil
itself but from another.
From
infection to death, the devils are dying in about six months’ time. However, the cancer is more diabolical
because, in most cases, it is not the cancer that is killing the devils. Rather, the tumors make it difficult for the
devils to eat and ultimately, they are starving as the cancer kills them. To make matters worse, the cancers are
infecting an animal whose cell defense is not diverse enough to detect the
cancer. The marsupial has struggled with
the cancer in the decade or so since its first identification and in that time,
it has killed nearly 85% of the Tasmanian Devil population on the island and it
is still going strong.
While
both the Australian government and that in Tasmania are actively working and
funding research and measures to protect the devil population, scientists are
taking the lead. They are encouraged by
the fact that a small population of the devils is developing a resistance but
not enough to prevent potential species extinction. New ideas are also being considered and
tested. One of the major efforts is to
relocating a group of unaffected animals onto a nearby island southeast of
Tasmania – Maria Island. By relocating these
healthy devils, they are hoping that, were the Tasmania population to die out,
the species would stave off extinction.
There
is a certain paradox on the part of the scientists who are leading the effort
to the save animals. Such animal advocates
and other activists are always quick to point out, rightfully so, of the
actions of man and its impact on the world, the lives of animals and their
environment. Don’t get me wrong, I don’t
have a problem for a person to speak up for animals but those same folks who
worry about the actions of men and its impact on animals, do not see the
problem with the artificially re-bolstering of an endangered population. I wonder if there will be any ramifications
of the scientists’ actions. I certainly
don’t know but any disease that can mutate and spread as quickly as this cancer
will continue to pose a threat in one form or another. Might it reappear once the healthy devils are
reintroduced in Tasmania?