Oceanographers pilot drones called SnotBots through the blow of whales to collect condensate (“snot”) for research into whale health and genetic diversity. The snot can contain stress and pregnancy hormones.

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How Did the Sperm Whale Get Its Name?

Sperm whales (Physeter catodon), or cachalots, are the largest of the toothed whales, with males up to 19 meters (62 feet) long—more than five times the length of a large elephant—and females up to 12 meters (39 feet) in length. They are easily recognized by their enormous square head and narrow