According to a report from Phys.org, researchers have turned to narwhals as a novel tool for studying Arctic warming. The animals, known for their spiral tusks, are fitted with sensors that record water temperature as they dive. This allows scientists to gather information from deep, remote parts of the ocean that would be challenging to sample using conventional methods.

The narwhals' natural behavior makes them especially useful: they regularly dive to significant depths in areas that are often ice-covered or otherwise inaccessible. The temperature data they collect can then be used to track changes in the Arctic marine environment over time.

This report is based on a single source, so no conflicting perspectives are available. The findings highlight an innovative approach to climate monitoring, though the article does not specify the number of animals involved or the duration of the study.