How to use in-sentence of “Dorsal fin”:
+ The second dorsal fin is large, but smaller than the first dorsal.
+ The fins are bluish-black and the front dorsal fin is speckled with small black spots.
+ During tonic immobility, the dorsal fin straighten, and both breathing and muscle contractions become more steady and relaxed.
+ The Blacknose shark is grey to greenish grey with black tips on the second dorsal fin and dorsal caudal lobe.
+ The first dorsal fin is quite wide, and is located at the back of the pectoral fins.
+ A large, slim shark, the Silky shark has a fairly stretched, rounded snout, a relatively slanting first dorsal fin with a blunt top that is located behind the edges of the pectoral fins, a small second dorsal fin with an extremely long free rear tip.
Example sentences of “Dorsal fin”:
+ The much smaller second dorsal fin is located at the front of the anal fin which is strongly recurved.
+ The first dorsal fin has a bluntly-pointed tip, and is located above or behind the pectoral fins.
+ It can be identified by the shape of its “hammer which is wide and has an almost straight margin at the front, and by its first dorsal fin which is tall, and is sickle-shaped.
+ They do not have a dorsal fin like a shark.
+ Bites are normal, so much so that a female Silvertip shark has been found without a part of the dorsal fin after mating.
+ The first dorsal fin is low and positioned at the back of the pectoral fins, and the second dorsal is of similar shape and size and positioned at the front of the anal fin.
+ The second dorsal fin originates over or just behind the origin of the anal fin.
+ The first dorsal fin is located well behind the pectoral fins.
+ The second dorsal fin is noticeably smaller.
+ The first dorsal fin is tall and nearly straight.
+ However, the silvertip shark is a much heavier species, and has a large first dorsal fin and a much smaller second dorsal fin.
+ The Atlantic sailfish is a metallic blue fish with a large sail-like dorsal fin and a long and pointed bill-like snout.
+ The first dorsal fin is very large with a rounded tip, and is just in front of the pectoral fins.
+ The first dorsal fin is large with a pointed apex.
+ The pelvic fins are closer to the second dorsal fin than to the first dorsal fin.
+ The first dorsal fin is located over the pelvic fins.
+ Nurse sharks have two spineless, rounded dorsal fins, with the first dorsal fin being much larger than the second, and they have one anal fin.
+ It has large eyes and one dorsal fin and a round tail fin.
+ The second dorsal fin is located over, or slightly in front of, the anal fin.
+ The much smaller second dorsal fin is located at the front of the anal fin which is strongly recurved.
+ The first dorsal fin has a bluntly-pointed tip, and is located above or behind the pectoral fins.