There are
only about 30 north Pacific right whales left after hunters nearly wiped out
the slow-moving animals
Associated
Press
Thu 20
Jun 2019 06.08 BSTLast modified on Thu 20 Jun
2019 09.09 BST
Marine
biologists for the first time have recorded singing by one of the rarest whales
on the planet, the north Pacific right whale.
Researchers
at the National Oceanic and Atmospheric Administration (NOAA) used moored
acoustic recorders to capture repeated patterns of calls made by male north
Pacific right whales.
It is the
first time right whale songs in any population have been documented, said NOAA
Fisheries marine biologist Jessica Crance on Wednesday.
Researchers
detected four
distinct songs over eight years at five locations in the
Bering Sea off Alaska’s south-west coast, Crance said.
Only
about 30 of the animals remain. Whalers nearly wiped out the slow-moving
whales, which remain buoyant after they are killed.
Humpback,
bowhead and other whales are known for their songs, but during a field survey
in 2010, NOAA Fisheries researchers noted weird sound patterns they could not
identify. “We thought it might be a right whale, but we didn’t get visual
confirmation,” Crance said.
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