Sharks

Humans affect sharks habitat when they fish or over fish for sharks just to catch them so they can cut off the fins on the shark. Even if some people accidentally catch a shark in a by-catch its still dangerous for the sharks because its can get cut and bleed, and attract other sharks and get eaten alive or some people when they catch sharks they don't let them go they keep them to eat.

Another thing that affects the sharks is the boats that sail the seas some sharks get threatened because of the motor and the way the boat looks and will most likely bump it with its back. The whale fish is supposed to the friendliest shark to humans in water but when the see a sail boat they automatically feel threatened and bump it with its back. This is not only dangerous to people but also sharks because they could get hut if they hit the motor and the gas and pollution the motor gives off also gets into the water and pollutes the water they live in.

By: Gabriela Demakos

A remora is a type of fish that has a special sucker on the top of it's body. It frequently attaches itself to large fish like sharks, and will feed on the scraps left over when the shark feeds. The remora does not harm the shark in any way, and the sharks do not feed on the remora.

YES!!! from my own experience. I can tell you that i have seen a great white shark snack on some of my poop. so that would be a yes. But don't poop in a sharks mouth that's a bad idea. I tried once....... I still miss my left cheek

A young shark is called a "pup." Shark pups are typically born from eggs or born live, depending on the species. They are usually left to fend for themselves after birth, as most shark species do not provide parental care.

Yes. The Bullshark can live in fresh and salt water

No, this is a fallacy. Although dolphins and sharks do not seek each other to attack, they appear to have a mutual respect. Normally, a shark will only attack a lone dolphin, a sick dolphin or a calf that strays from its mother. In Port Phillip Bay, the large male dolphins that usually live outside the bay come inside at the beginning of October, which is the same time that the bronze whaler sharks come into the bay to mate and give birth. Male dolphins form a guard around the females and young to protect them during this time. Sharks usually keep their distance from the dolphins.

Remoras attach themselves to the shark and eat the leftover food remains that they can find.

This would fall into the commensalism symbiotic relationship, because the remora is getting its food, and the shark gets no benefit.

There are other studies that suggest that the remoras clean parasites from the shark's teeth and perhaps skin. If this is true then it is a mutualism relationship.

Remoras eat the parasites off the underside of the shark to keep it healthy and alive. Plus the Remoras get a free meal and protection. A mutualistic symbiotic relationship.

the pilot fish clean the shark's teeth and skin, and the shark protects them

The remora fish attach to the shark's belly and eat the malignant parasites off it.

Also remoras can stick to other organisms such as whales, other big fish and maybe also crocodiles. This would still fall into the category of commensalism.

agression from old relatives, the aquatic dinosaurs. large size from its ginormous relative that was 100-150 ft long. sense of smell from dinosaurs and eye-sight from the murky waters its cousin used to live in.

I believe about 20,000 are killed every year

The shark's organ of sight is its eye, which is well adapted for underwater vision. Sharks have excellent vision in low-light conditions and can see well in murky waters. Their eyes are equipped with special adaptations like a reflective layer called tapetum lucidum for enhanced night vision.

a long tail to hit its predators with. dirp!

Car accidents kill A LOT more people than sharks. Slipping in the bathroom kills more people than sharks.

Unless you're a pro diver or dedicated surfer, shark attacks are too rare to sensibly worry about.

There's one called the cookie cutter Shark which kinda fits that description.

Sharks find their prey using their noses. They can smell something from miles away! They also have tiny holes near the tip of their snout that pick up the electromagnetic fields of other animals, allowing the shark to find it from long distances. THROUGH LITLLE HOLES AROUND THERE MOUTHS THAT PICK UP MAGNETIC FIELDS. E VEN VERY SMALL ONES.

about 7500 meals a year really no joke that's a lot right!

same reason you might get excited (hungry) if you smelled steak grilling. but lets say you don't like chicken but steak is your favorite. if you were blindfolded and had to do a taste test you could tell them apart right? same with sharks they can't see well so they taste test. we taste different from fish.

As strange as this may sound, when a shark encounters a human beeing in the water, there is a very high probability this shark has never seen before such a «strange fish» in the oceans.

Usually the shark feels curiosity, but also caution. He is intrigued, and keeps distance, unless it is provoked attacked.

But sharks (specially Great Whites) may mistake surfers by seals. If this happen, a shark attack may occur.

Hi i am so mad

-sharks have cartalige, NOT bones -the myth "a shark can sense a drop of blood in an olympic sized swimming pool", not true. they could smell a drop of fish blood, not human blood...
-the dorsal fin on a shark is bent backwards
-sharks can have anywhere between 5-7 gills
-sharks are attracted to flashy/bright/highly contrasting colors because they remind them of a fish
-sharks can range from being able to hold them in your hand, to being over 60 feet long

they have 1

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Two of the most popular types of sharks in the world are the great white shark and the hammerhead. The great white is well known for being one of the largest and most dangerous sharks to ever exist. The shark in "Jaws" is also a great white, which brought a lot of notoriety to the great whites. Hammerheads are also popular based on their unique head shape which is shaped like a hammer. They have their eyes on the opposing sides of their heads.

Many fish swim with their mouths open. They swim with their mouths open because the water goes into their mouths and out their gills, which is how they breathe.