How to use in-sentence of “caudal fin”:
+ This unusual fish swims by flapping its long pectoral and dorsal fins; the caudal fin is used as a rudder.
+ Its large size and extended gill slits which nearly encircle the head and caudal fin together, helps distinguish it from all other species.
+ The caudal fin has both, an upper lobe, and a lower lobe, that can be of different sizes and the shape depends of which species the shark is.
+ The strong, non-lunate caudal fin in most benthic zonebenthic shark species allows the shark to swim close to the seabed.
+ The caudal fin is asymmetrical in shape with a rather large upper lobe.
+ The caudal fin is more than one quarter of the total shark’s length.
+ Unusually for sharks, the lower lobe of the caudal fin is longer than the upper lobe.
+ The caudal fin is semi-lunate in adults, and with the young, the upper lobe is quite longer than the lower lobe.
