PRESENTATION OUTLINE
Great White Shark
By Tristan Williams
Carcharodon Carcharias
Physical Characteristics
- The Great White Shark is the largest predatory shark, and is probably the most well-known
and feared shark.
- The largest Great
Whites can reach lengths of 22 feet and weigh up to 5,000 pounds. Most are between 13 and 16 feet
and weigh 1,500-2,400 pounds.
- The true lifespan of great white sharks is far longer, now estimated to be as long as 70 years or more. Population Estimate: 2,400
Sunlight zone
- the layer of sea water that receives enough sunlight for photosynthesis to occur: it varies greatly with season and latitude, from 0 to 1200 ft.
- These powerful predators attain top speeds of over 15 MPH, but are only able to sustain such speeds for brief bursts. Great whites swim constantly because they rely on a breathing technique called ram ventilation. They swim with their mouths slightly open to force water through their jaws and over their gills.
People kill sharks, sharks kill people. End of story.
Some people feed sharks... get it because sharks eat people, OK never mind not funny. Humans are so dumb they kill themselves and other organism by spilling oil into the ocean. And they wonder why sharks want to eat them. They even disobey their own laws and kill sharks anyway.
PHYSICAL ADAPTATIONS.
To start off these guys are already better than humans. Sharks are generally drably countershaded. Countershading is a type of camouflage in which the dorsal side is darker than the ventral side. The dark top of a coutershaded animal blends in with the dark ocean depths when viewed from above. The light ventral side blends in with the lighter surface of the sea when viewed from below. The result is that predators or prey do not see a contrast between the countershaded animal and the environment.
Sharks mature slowly, and reach reproductive age anywhere from 12 to 15 years. This, combined with the fact that many species only give birth to one or two pups at a time.Most sharks are especially active in the evening and night when they hunt. Some sharks migrate over great distances to feed and breed. This can take them over entire ocean basins. While some shark species are solitary, others display social behavior at various levels.