Definitions
WordNet 3.0
- n. any of several long-snouted usually freshwater dolphins of South America and southern Asia
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Lists
These user-created lists contain the word ‘river dolphin’.
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Echolocation
"Echolocation, also called biosonar, is the biological sonar used by several animals such as shrews, most bats, and most cetaceans. The term was coined by Donald Griffin, whose work with Robert Gal...
echolocation, biosonar, sonar, shrew, bat, microbat, megabat, dolphin, porpoise, orca, sperm whale, river dolphin and 10 more...
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