river dolphin
Noun: A type of dolphin characterized by a long snout, typically inhabiting freshwater river systems, particularly in South America and southern Asia. These are distinct from marine dolphins.
The term "river dolphin" is used as a countable noun to refer to individuals or species within this specific biological group. It is often used in zoological, conservation, and ecological contexts. * The Amazon river dolphin, also known as the boto, has a pinkish color. * Conservationists are working to protect the habitat of the endangered river dolphin. * Several species of river dolphin are found in Asia's major river systems.
- "River dolphin population": Refers to the group of these animals living in a particular area.
- The river dolphin population in the Yangtze has declined dramatically.
- Used attributively (as a noun modifier) to describe related concepts.
- River dolphin conservation is a critical issue.
- Platanistidae (n): The scientific family name for most river dolphins.
- Freshwater dolphin (n): A broader, more descriptive term that is often synonymous with "river dolphin."
- Boto (n): A common name for the Amazon river dolphin ().
- Ganges river dolphin (n), Indus river dolphin (n): Specific species names.
- Freshwater dolphin
- (Specific species names, e.g., boto, susu)
This term specifically denotes dolphins adapted to river environments, not marine dolphins that may occasionally enter estuaries. Their most distinguishing features include their long beaks and flexible necks.
- any of several long-snouted usually freshwater dolphins of South America and southern Asia