Shark anatomy - Wikipedia
The tail of a shark consists of the caudal peduncle and the caudal fin, which provide the main source of thrust for the shark. Most sharks have heterocercal caudal fins, meaning that the backbone extends into the (usually longer) upper lobe. The shape of the caudal fin reflects the shark's lifestyle, and can be broadly divided into five categories:
Shark - Wikipedia
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha[1] (or Selachii) and are the sister group to the Batoidea (rays and kin).
Sharks & Rays - Physical Characteristics | United Parks & Resorts
Body Shape. Sharks typically have a fusiform body (rounded and tapered at both ends). This shape reduces drag and requires a minimum amount of energy to swim. Wobbegong sharks (Family Orectolobidae) and angelsharks (Family Squatinidae) have a flatter appearance than most sharks. Batoids are flattened, with a ventral mouth and gill openings.
Shark Body Shapes: How Shark Species Differ Based on Their Form
2024年9月18日 · Discover the distinct body shapes of sharks and how these forms influence their behavior, habitats, and hunting styles. Learn about fusiform, elongated, and other shark body types.
Shark Shape Royalty-Free Images, Stock Photos & Pictures
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Shark - Facts, Diet & Habitat Information - Animal Corner
Unlike bony fish, sharks have no bones – their skeleton is made of cartilage, which is a tough, fibrous substance, not nearly as hard as bone. Sharks have a streamlined body shape that glides smoothly through the water and contains five to seven gill slits which they use to respire.
Shark Anatomy - The Shark Trust
The size and shape of a shark’s fins and tail can vary greatly. Faster sharks (such as the Shortfin Mako) tend to have shorter crescent shaped tails. Whereas slower moving sharks (such as the Bluntnose Sixgill Shark) have longer thinner tails.
Sharks | Smithsonian Ocean
There are more than 500 species of sharks swimming in the world’s ocean. Yet when most people think of these cartilaginous fish, a single image comes to mind: a large, sharp-toothed and scary beast. That generalization does sharks a huge disservice, as they have far more variety than that.
Sharks: Streamlined Swimmers – Harvard Museums of Science
Most sharks have a body shape that is at least somewhat fusiform, or torpedo-like. As they swim, sharks use continuous lateral (side-to-side) undulations of the body. The pectoral fins on either side of the body are positioned and shaped to help the shark maneuver in all planes, often at “lightning” speed.
Shark Body Shapes - Shark Anatomy - EnchantedLearning.com
Most sharks have streamlined, torpedo shaped bodies that allow them to swim through the water with a minimum amount of friction. This enables them to swim very fast in order to catch prey. Most bottom dwelling sharks (like the angelsharks) have flattened bodies that let them hide in the sand on the ocean bed.