sand tiger
Học thuậtThân thiện
Definition
Noun 1. A type of shark: The sand tiger is a species of shark that lives in relatively shallow coastal waters. It is characterized by a stout body, a flattened, conical snout, and a mouth that often remains open, revealing long, slender, pointed teeth that protrude in a jagged pattern. Despite its fearsome appearance, it is generally not aggressive toward humans unless provoked.
Usage Examples
- Noun:
- We saw a sand tiger resting on the ocean floor during our dive.
- The sand tiger shark is known for its menacing look but calm demeanor.
- Conservation efforts are important for protecting species like the sand tiger.
Advanced Usage
- Scientific Context: In marine biology and conservation, "sand tiger" is often used to refer specifically to . It is also known regionally as the grey nurse shark (in Australia) and the ragged-tooth shark (in South Africa).
- The population of sand tiger sharks has declined due to overfishing.
Variants and Related Words
- Sand tiger shark: This is the full, most precise common name for the species.
- Grey nurse shark: A common name used primarily in Australian waters.
- Ragged-tooth shark: A common name used primarily in South African waters.
Synonyms
- Grey nurse shark (regional synonym)
- Ragged-tooth shark (regional synonym)
- Coastal shark (descriptive, but not a precise synonym as it refers to many species)
Related Phrases
- Sand tiger nursery: A coastal area where juvenile sand tiger sharks are commonly found.
- This bay is a known sand tiger nursery.
Noun
- shallow-water shark with sharp jagged teeth found on both sides of Atlantic; sometimes dangerous to swimmers