Shark tail fins, also called the caudal fins, are unique among all fishes. If you look at the top half of the fin, it is noticeably longer than the bottom half. This asymmetrical profile was common in many ancient fishes, but sharks are the only group to maintain the shape over a period of 350 million years.

What are the parts of a shark?

Body Parts of a Shark

  • Dorsal Fin. The dorsal fin is the infamous protruding cartilage that sits atop the shark’s smooth surface. …
  • Gill Openings. These slit like openings fall along the sides of the sharks powerful jaws. …
  • Eyes. …
  • Spiracle. …
  • Mouth. …
  • Snout. …
  • Pectoral Fins. …
  • Pelvic Fins.

What are the fins on the bottom of a shark called?

Pelvic fins, also called ventral fins, are found on the underneath side of the shark’s body. Like pectoral fins, pelvic fins are usually paired. Pelvic fins are usually the smallest fins present on a shark’s body, however they are still very important.

What is the tip of a shark called?

The dorsal (top) side of a shark is a lighter color than the ventral (bottom) side.

What is the thing on the back of a shark called?

Sharks have a large dorsal fin which provides balance. Usually they’ll also have a smaller dorsal fin further back towards their tail. Their pectoral fins are used to steer and lift themselves in the water.

What do sharks use their tails for?

‘Intelligent’ hunting behaviour was previously seen only in marine mammals. Thresher sharks can use their lengthy tail fins to swat sardines from shoals, researchers have found by taking underwater footage.

Leave a Reply