Sharks Info

Bullhead Shark, Hornsharks, Heterodontiformes

What Are Bullhead Sharks (Hornsharks or Heterodontiformes)?

A Bullhead Shark is a small shark with five pairs of gill slits, a stumpy snout, no nictitating membrane and a ridge above each eye (giving them the appearance of being surprised). Bullhead Sharks are also called Heterodontiformes or Hornsharks. Appearance Of Bullhead Sharks Bullhead sharks (or Heterodontiformes) are fairly small sharks, the largest of …

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Shark Evolution

Shark Evolution Timeline – Based On Evolutionary Evidence

The shark evolution timeline dates back millions of years. Evolutionary evidence is based upon fossilised sharks and the oldest remain dates back 420 million years (called the Silurian period) and paint the picture of a very different looking shark to those to which modern researchers are accustomed. In recent decades, the ever-improving tools of discovery …

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Shark Electroreception

Sharks Electroreception- How Do Sharks Use Electroreception And How Does It Work?

Shark electroreception is used to detect and interpret the electric field of their prey with modified sensory organs on their snout. This sensory perception is enabled by the Ampullae of Lorenzini. Sharks electroreception abilities are one of the most advanced of all the animals on earth and in the oceans. What Is Shark Electroreception? Shark …

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