Bat that roared

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By Susan Milius

April 30, 2008 at 10:32 am - More than 2 years ago

Bats using sound to find their way in the dark boom louder than home fire alarms and rock concerts, according to new measurements.

BAT BOOMER One of the two loudest bats on record, the bulldog bat (Noctilio leporinus) blasted out echolocation sounds in the range of 137 decibels, compared to 108 decibels for home smoke detectors.