Paragraph 2
Scientists believe wild boars have remained so radioactive because of their
of truffle mushrooms. Radioactive
accumulate in these underground
, which the boars eat. The
of caesium in boars make the animals too
to be eaten. This has led to a reduction in the
of the animals and a
of their numbers. A geochemist asked why the
of nuclear weapons testing on the environment has been "under-studied and
forgotten". He said caesium soil pollution will "haunt
to come".