Ventral Fin (Noun)
Meaning
Either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate.
Classification
Nouns denoting animals.
Examples
- The ventral fin on the shark helped it make sharp turns while chasing its prey.
- In most species of fish, the ventral fin is used for stabilization during swimming.
- The position of the ventral fin on the underside of the fish's body enhances its maneuverability.
- During evolution, the ventral fin in fish developed in a manner analogous to the hind limbs of quadruped mammals.
- Many fish are born with small, undeveloped ventral fins that grow larger as they mature.