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Shark Gallery 2 - Bad Boys

 


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These sharks have the reputations of being the "Bad boys"
of the ocean along with the Great White on the previous page.

Combined they're known as the "Top 3" when it comes to shark attacks.


Bull Shark

Zambezi, Lake Nicaragua

Carcharhinus leucas

Carcharhinidae: Requiem Sharks


Bullshark

Photo Courtesy of: Wikipedia

By whatever name you call him, this is a dangerous shark! It's many names stem from the numerous places it lives or has been found. It is likely to be responsible for more attacks than it has been credited due to its resemblance to other sharks.

It's uniqueness of tolerating fresh water as well as highly salty sea water, gives it ample opportunities to encounter humans. This fact makes it a greater threat than the Tiger or Great White.

The bull has a blunt nose and rounded snout and small eyes. His first dorsal fin is pointed and his fin tips are dusky colored. Bulls are quite common throughout the world's waters. They are viviparous (producing young not eggs) and select "pupping grounds" for litters of up to 13 pups, born after a years gestation. It will eat anything it can capture.

Interesting fact... Bull sharks have been found in the Amazon River, upstream by 2,5000 miles and also up the Mississippi River as far as 1,750 miles! It is also found in Lake Nicaragua. The rare Ganges shark is not known to be a separate species and is therefore believed to be the Bull Shark.


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Tiger Shark

Tiger Shark

Galeocerdo cuvier

Carcharhinidae: Requiem Sharks

Tiger Shark
Photo Courtesy of: Carl Roessler

The tiger is a large and dangerous shark of tropical waters. Named for it's dark stripes on it's back as a juvenile which fade as they reach adulthood. Tigers have a wide mouth with a broad nose. Although they appear to be sluggish swimmers, they can move very quickly when feeding and are capable of bursts of speed. They are rarely seen by divers, but should be avoided if encountered. You could say they have a nasty temper and you wouldn't want to aggravate them!

Tigers are nocturnally active, entering the shallows to feed around dusk. And eat they do! They are known as the scavengers of the sea and will eat just about anything! Their favorites include such delicacies as: sea turtles, seals, sea lions, cetaceans, venomous jellyfish, stingrays and sea snakes. Yum! They've also been known to eat cattle, pigs, donkeys, sheep...anything that has fallen overboard from a ship. They've even found young birds learning to fly over the water a tasty treat! Their distribution is world wide in tropical waters and can grow to reach 24 ft. in length.

Interesting fact... Tiger sharks are the only ovoviviparous (producing eggs which hatch inside the mother before birth) of the requiem sharks. They have between 10 and 82 pups after a year long gestation. Tigers mature after about 4 to 6 years, living approximately 12 years.



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