Block, Siteadmin, SkipCaptcha, Upload, Automoderated users, delete, edit, Moderators, move, protect, rollback, Administrators
27,336
edits
Changes
Jump to navigation
Jump to search
Line 53:
Line 53: +
→Sensory organs
The only hard part of a shark's body, their teeth are arranged in a "conveyor belt"-fashion, enabling continual replacement over the lifetime of the animal.
The only hard part of a shark's body, their teeth are arranged in a "conveyor belt"-fashion, enabling continual replacement over the lifetime of the animal.
====Sensory organs====
====Sensory organs====
[[File:Shark2.jpg|right|200px|thumb|external anatomy of a typical shark]]
Sharks possess several sensory organs which enable them to bear down on their prey or scavenge, often from miles away. Their eyesight is extremely sensitive to light and shadow. Their sense of smell enables them to detect a drop of blood in water a quarter-mile away, while their lateral lines (a nerve line extending along their flanks) enable them to detect the vibrations from distressed fish several miles away. The ''ampullae of Lorenzini'' are small pits on the snout, enabling sharks to detect weak electrical signals produced by the muscle contractions of bony fish.
Sharks possess several sensory organs which enable them to bear down on their prey or scavenge, often from miles away. Their eyesight is extremely sensitive to light and shadow. Their sense of smell enables them to detect a drop of blood in water a quarter-mile away, while their lateral lines (a nerve line extending along their flanks) enable them to detect the vibrations from distressed fish several miles away. The ''ampullae of Lorenzini'' are small pits on the snout, enabling sharks to detect weak electrical signals produced by the muscle contractions of bony fish.