Question

scientists who study the ocean have found unlikely co - investigators in a team of specially equipped seals. parts of the worlds oceans, like the treacherous waters surrounding antarctica, are too remote and perilous for human researchers, but theyre brimming with seals. these seals may be languid on land, but they are active in the icy water. marine scientists have fitted more than three hundred elephant, weddell, and crabeater seals with specialized sensors that collect data about the water as the seals swim through it. the data is remitted back to the lab, where scientists have used it to better understand ocean currents and changes in antarctic ice.

Explanation:

The problem is about marine scientists using seals to collect ocean - related data, which is related to the study of the ocean and marine life. In the Natural Science discipline, the subfield of Biology (specifically Marine Biology, which can be considered under Biology or as an 'Others' subfield related to oceanic biological research) is relevant as it involves the study of marine organisms (seals) and their interaction with the ocean environment for scientific research.

Answer:

The subfield is Biology (under Natural Science).