"Using insights and methods from how babies learn language allowed us to discover previously undetected structure in whale song," said Prof. Inbal Arnon from the Hebrew University of Jerusalem.
The ecological catastrophe began December 15, when two Russian oil tankers, the Volgoneft-212 and the Volgoneft-239, sank during a storm in the Kerch Strait.
The male whale may be increasing its reproductive chances by mingling with other populations.