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Australian sea lions (Neophoca cinerea) are one of the rarest pinnipeds in the world and they are declining. Picture: Jarrod Hodgson.

Drones monitor health of declining Australian sea lions

The Australian sea lion population has never recovered from the impact of the commercial sealing that occurred mainly in the 19th century. But the use of drones by University of Adelaide researchers to identify the reason for the latest decline could play a significant role in reversing the threatened species’ fortunes.