Ever since the earliest known recording of whale song was made in 1949, researchers have been captivated by the wails, rumbles, clicks, grunts and squeals of their communication. As technology improves, scientists are decoding the intricate patterns that make different species’ vocalisations distinctive. Madeleine Finlay hears from Emma Bryce, a journalist who has spent months investigating human efforts to understand whale song. She explains how this knowledge could help us better protect whales from human-made harms.

Credits:

1. Valeria Vergara/Raincoast Conservation Foundation

2. Footage courtesy of Raincoast Conservation Foundation - Obtained for research under SARA permit XMMS 4 2026

3. Video by Amanda Cotton/Project CETI

4. Footage courtesy of Valeria Vergara and GREMM. Obtained for research under SARA permits QUE-MM02-2016 and QUE-LEP-001-2018

5. Project CETI

6. Project CETI

The chicken liver sponge has sailed through a test of its ability to filter pollutants in a harbour in Spain’s Costa Brava

In the polluted waters of Marina Palamós on Spain’s Costa Brava, Manuel Maldonado, a sponge biologist, noticed something unusual last month: red starfish had started settling in the area.

Nearly two years earlier, the Spanish National Research Council scientist and his colleagues had begun transplanting sea sponges into the port to study whether they could survive in its polluted waters.

Critically endangered New Zealand bird enjoys record breeding season triggered by mass fruiting of native tree, pushing its numbers to 325

The population of the world’s heaviest parrot, the kākāpō, has surpassed 300 birds for the first time in 75 years, after a record breeding season triggered by the mass fruiting of a native New Zealand tree.

Ninety chicks were officially added to the population of the critically endangered birds on 1 September, pushing the total to 325 – a record high since recovery efforts began.

Critically endangered New Zealand bird enjoys record breeding season triggered by mass fruiting of native tree, pushing its numbers to 325

The population of the world’s heaviest parrot, the kākāpō, has surpassed 300 birds for the first time in 75 years, after a record breeding season triggered by the mass fruiting of a native New Zealand tree.

Ninety chicks were officially added to the population of the critically endangered birds on 1 September, pushing the total to 325 – a record high since recovery efforts began.