Ever
heard of the quagga? You're not alone. The animal, a relative of the
zebra, went extinct over 100 years ago. Now, a group of scientists
outside of Cape Town are bringing it back.
Like
zebras, the quagga has stripes, though these only appear on the front
half of their bodies.
Unlike the zebra, they are brown along the rear
half of their body. These animals used to roam South Africa in vast
herds, but European settlers fixed the beasts in their sights, killing
them at an alarming rate.
By the 1880s, the last known example had died.
Now, however, scientists have bred an animal that looks strikingly
similar with the help of DNA and selective breeding.
Reverse engineering
A
group called the Quagga Project has worked to resurrect the
little-known species. According to Eric Harley, the project's leader and
a professor at Cape Town University, the key was hidden in the animal's
genetics. Testing remaining quagga skins revealed the animal was in
fact a sub-species of the plains zebra.
Harley
hypothesized that the genes which characterized the quagga would still
be present in the zebra, and could manifest through selective breeding.
With each new group of foals, the distinct colorings have become
stronger and more defined.
"The
progress of the project has in fact followed that prediction. And in
fact we have over the course of 4, 5 generations seen a progressive
reduction in striping, and lately an increase in the brown background
color showing that our original idea was in fact correct," says Harley.
A zebra can change its stripes
The
project has not been without its critics. Some have called the project a
stunt, saying all that's been created is a different looking zebra,
without taking into account the ecological adaptations or behavior
differences in the original quagga.
"There
are a lot of detractors who are saying you can't possibly put back the
same as what was here," says fellow project leader Mike Gregor.
These animals "might not be genetically
the same," adds Gregor, who admits that "there might have been other
genetic characteristics [and] adaptations that we haven't taken into
account."
Accordingly, these creatures
are named "Rau quaggas," after Reinhold Rau, one of the project's originators. Only six of the 100 animals on the reserve currently hold
this title, but when the number reaches 50 there are plans for the herd
to live together in one reserve.
"What
we're saying is you can try and do something or you could just not,"
argues Gregor. "And I think us trying to do, trying to remedy something,
is better than doing nothing at all."
"If
we can retrieve the animals or retrieve at least the appearance of the
quagga," Harley suggests, "then we can say we've righted a wrong."
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