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Showing posts with label Sharks. Show all posts
Showing posts with label Sharks. Show all posts

Aug 11, 2013

Sharks: the Elite Fish [Part 2]


Let’s continue with sharks:
Biological Features [continued] 
Ampullae of Lorenzini are tiny pores on located on the lower jaw and snout. Sharks are also poisonous (not when they bite). Sharks steal their poison from fish that contain that poison. But the fish also steal the poison from dinoflagellates algae. This poison that the sharks eat is ciguatera. Another poison is called carchatoxin A and B. When ciguatera is consumed it can cause illness and if any carchatoxin is consumed they can

Aug 8, 2013

Sharks: The Elite Fish [Part 1]


Top Row-whale shark, bull shark
Bottom Row-great white shark, tiger shark
Sharks are most commonly known to people as carnivorous man-eating fish. But really they are mostly harmless to people. Only three species of sharks are considered to be dangerous to humans, bull sharks, tiger sharks, and great white sharks. Bulls are considered the most dangerous because of their ability to live in saltwater and freshwater, increasing the chance of human encounter. Great whites aren't technically the largest shark;