Julio Cardoso leans over the side of a boat to photograph a humpback whale as it slaps its giant tail into the water off Brazil's southeastern coast.
Like other citizen scientists, as they are known, Cardoso uses the photographs to collect information on the numbers of the marine mammals, helping researchers and scientists track the surging numbers of humpbacks in the area.
"These animals survived whaling with a very, very small population remaining... something between 300 to 500 animals," Palazzo, of the Humpback Whale Institute in the state of Bahia, said. Cardoso and his team photograph the whales' tales, which is the best way to identify them as, like human fingerprints, no two tails are identical. They upload the photos onto the HappyWhale website, a global whale watching platform that uses image processing algorithms to match whale photos with scientific collections.
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