Listen to the song of a pygmy whale in the eastern Indian Ocean.

from : https://www.abc.net.au/news/2023-08-10/pygmy-blue-whales-swim-across-the-ocean/102686140

A pod of pygmy blue whales swim across the ocean.

Pygmy blue whales in the South-east Indian Ocean migrate from the southern coast of Australia to Indonesia, with a significant part of their migration route passing through areas subject to oil and gas production.