pygmy sperm whale
Học thuậtThân thiện
Definition
Noun: 1. A small species of toothed whale: The pygmy sperm whale is a relatively small cetacean, a marine mammal belonging to the family Kogiidae. It is characterized by its compact body, small dorsal fin, and a spermaceti organ in its head, similar to but much smaller than its larger relative, the sperm whale. 2. A specific zoological species: Scientifically known as Kogia breviceps, it is one of two species in the genus Kogia and is found in deep, warm, and temperate waters worldwide, often far from shore.
Usage Examples
- Noun:
- The pygmy sperm whale is rarely seen at sea due to its elusive nature.
- Researchers identified the stranded animal as a pygmy sperm whale.
- Unlike the giant sperm whale, the pygmy sperm whale typically grows to only about 3.5 meters in length.
Advanced Usage
- In scientific and conservation contexts: The term is used precisely to distinguish from the dwarf sperm whale () and the great sperm whale ().
- The study focused on the feeding ecology of the pygmy sperm whale in the Atlantic Ocean.
Variants and Related Words
- Dwarf sperm whale (): A closely related, similarly sized species within the same genus.
- Sperm whale (): The much larger, well-known relative in the superfamily Physeteroidea.
- Kogiidae: The biological family name for pygmy and dwarf sperm whales.
Synonyms
- Cachalot (though this more commonly refers to the great sperm whale, it is sometimes used broadly for related species).
- Kogia breviceps (the scientific binomial name).
Related Phrases
- "Pygmy sperm whale stranding": A common phrase used in marine biology and news reports when these whales beach themselves.
- A pygmy sperm whale stranding on the coast prompted a rescue effort.
- "Pygmy sperm whale specimen": Used in museum or research contexts.
- The museum acquired a pygmy sperm whale specimen for its marine mammal collection.
Noun
- small sperm whale of warm waters of both coasts of North America