Humpback Whale Song Changes Few Years

Canberra, 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

different populations.

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

new material.

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.

Source: Oman News Agency