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Radioactive wild boars have been roaming the
of Germany for decades. Scientists believed their
was
to the 1986 Chernobyl nuclear disaster. However, the animals'
has long mystified
because while levels of radioactive caesium in other animals has decreased over the years, radioactivity in wild boars has persisted at high
. Scientists have dubbed this
the "wild boar paradox". New research now attributes the
of Germany's wild boars to nuclear weapons tests from the mid-20th
. The Chernobyl reactor produced caesium-137, which has a much
life than the caesium-135 created by nuclear weapons.
