Yes. It can only stay above water for a couple minutes. Yea what now
YES! Bull sharks mainly stay in brackish waters. They have the ability to swim up the river. Bull sharks have been found at the end of the Mississippi river in the Northern Part of America.
Sharks smell very well. As a shark swims, water flows in and out of its nose. If the shark picks up the scent of blood it makes a beeline for it, sniffing hard to stay on course.
bull sharks have way more attacks (they can live in fresh water for up to 3 years)
The dorsal fin.
If you look up "tundra" on the wikipedia page, you will find that sharks do not live there because sharks like to live in water, and a tundra is treeless land.
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Bull Sharks; tolerate fresh water, and also travel far up rivers.
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Sharks are meat eaters they are most likely to be found eating meat and to keep there weight up to be strong they have to eat meat in order to stay alive.
They are made of water droplets and they do not stay up. The water comes down as rain.
Sharks do not need to come up for air - they are fish with gills.
They are called swell sharks because when they see a predator they swell up with water (or maybe oxygen I'm not sure) so that they appear bigger and scare it away.