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Zoologists have uncovered a
unknown sense
in elephants. It explains why the elephant trunk is so
. The scientists found that the whiskers at the end of the trunk are
enough to feel very small and
objects. The scientists are from the Max Planck Institute for Intelligent Systems. They say the
sensitivity of the whiskers makes up for the elephant's poor
. The whiskers are essential for navigating, finding
, and communicating. The researchers say the whiskers are "
" and give elephants an added sense of
.