Humpback Whale Song Changes Few Years.
Canberra, Nov 25 (ONA) --- A 13-year study involving experts
from the University of St Andrews found the signature song of
individual groups evolves gradually over time.
Humpback whales are famed for having "dialects" unique to
The new research was carried out by academics at the University
of St Andrews and the University of Queensland in Australia.
It focused on 95 humpback whale "singers" from east Australia
and found evidence that gradual song changes were due to
embellishments introduced by individuals that were then learned by
the rest of the group.
The scientists said songs introduced by revolutions may have
been simpler because the singers found it harder to learn completely
Dr. Jenny Allen, of the University of Queensland, said: "The
consistent reduction in complexity during song revolutions suggests a
potential limit to the social learning capacity of novel material in
humpback whales," the BBC news reported.
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