river dolphin

noun

Definition of river dolphin

: any of various small, toothed whales (as of the families Platanistidae and Iniidae) that chiefly inhabit rivers of South America and Asia and have a rounded forehead and a snout elongated into a long beak

Examples of river dolphin in a Sentence

Recent Examples on the Web Their list mainly included fish, but also mammals like beavers, river dolphins and hippopotami, as well as coldblooded creatures like crocodiles, giant salamanders and alligator snapping turtles. Rachel Nuwer, New York Times, "The Freshwater Giants Are Dying," 21 Jan. 2020 Small cetaceans such as the vaquita and various river dolphins successfully lived alongside human fishers for thousands of years in coastal waters, estuaries, and rivers. Virginia Morell, Science | AAAS, "Modern fishing methods are driving small whales and dolphins to extinction," 11 Dec. 2019 The Gangetic river dolphins are effectively blind, and see with sound. Shreya Dasgupta, Quartz India, "Noisy ships on India’s Ganga river are drowning the clicks of dolphins," 21 Nov. 2019 During an expedition in the Sundarbans, Deen sees river dolphins washing up dead on the shore. Abhrajyoti Chakraborty, The New Republic, "The Disaster Novelist," 8 Oct. 2019 The baiji, a Chinese river dolphin, is likely the first dolphin species driven to extinction by humans, and the Chinese paddlefish, which can grow 20 feet long, has not been seen in over a decade. Stefan Lovgren, National Geographic, "Earth’s largest freshwater creatures at risk of extinction," 8 Aug. 2019 Ecotourism Stars Less famous than their ocean-dwelling cousins, river dolphins are among the most endangered creatures on Earth. Stefan Lovgren, National Geographic, "Cambodia’s endangered river dolphins at highest population in 20 years," 5 Apr. 2019 This May, the team of astronomers and ecologists will look for orangutans in Malaysia and spider monkeys in Mexico before heading to Brazil to search for river dolphins. Sarah Gibbens, National Geographic, "How Do You Protect Endangered Animals at Night? Ask an Astrophysicist.," 6 Apr. 2018 Scientists are trying to learn more about the diverse and unique environment, where jaguars and margays roam the savannah and jungles, and river dolphins swim in the Guayabero River. Murray Carpenter, New York Times, "Scientists Fear for Colombia’s ‘Melted Rainbow’," 26 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'river dolphin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of river dolphin

1870, in the meaning defined above

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The first known use of river dolphin was in 1870

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Cite this Entry

“River dolphin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/river%20dolphin. Accessed 4 Jul. 2020.

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