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Sharks
When many think of sharks, they think of the movie Jaws or a dangerous man-eating fish. In reality, sharks is a large group of fish that includes very small to much larger fish. Some can be harmful to man and others are harmless. To delve into this interesting and diverse group of cartilaginous saltwater fish that have sharp teeth and a bad reputation, ask your questions in this category.
5,520 Questions
People still believe that there might still be a giant shark out there. But the megalodon was a shark everyone hopes is extinct!, I know I do haha :P
What fin provides the powerful thrust propelling sharks to go forward in the water?
In most fish, the tail provides forward thrust. However, I have seen certain fish use their pectoral fins to provide sustained forward thrust.
Sharks don't eat humans. This is a misconception. The common fear of sharks are a result of false media depictions, which portray the shark was a bloodthirsty, man-eating machine.
Countless people swim in hundreds of oceans around the world each day, even in places where sharks thrive. But fatal shark attacks only occur 5-9 times each year. Soda pop machines kill more people that sharks (13 people annually)!
When a shark attack occurs, it's usually a result of mistaking the victim for a seal, a typical shark meal. It's bewildering how few people are killed by sharks each year, considering how much we look like shark food!
Even though sharks kill 5 people yearly, we kill over 10 million of them in return. We have been on earth for a period of only 100,000-200,000 years. Sharks have shaped the oceans for 450,000,000 years! In the past 100 years, we have wiped out about 90% of the shark population and pushed it's species to severe endangerment, due to over fishing and shark finning. But we have the power to stop it - and if we don't do something soon, it is predicted the shark could go extinct.
Main Source: Film Documentary - Sharkwater
What are some characteristics of a habitat?
Accent and skin colour can be affected by the environment and can be inherited.
How do lanterns sharks catch there preys?
Dwarf lantern sharks use their stomach, which the fish is able to light up, to attract prey. This is how this shark got its name; 'dwarf', for its size, and 'lantern' for its stomach.
Why is it important that sharks continue to survive?
In Brasil and other countries or waters where tigers are responsible for large numbers of attacks on humans, populations need to be thinned out. In Brasil, they appeared to be following large ships into the harbors and through dredging we allowed access to areas not available to them before. As they multiply, they represent a serious threat to humans. They also provide a high protein meat for human consumption, cod liver oil and Preparation H which are important to humans.
Ken, the Shark Wrangler, www.sharkwrangler.com
How many people get bitten by a shark each year?
i do not know this transaction but i can tell 67 have died and i can surely tell you i will not be getting in the water lately unless superman will save me.
thank you.
Is it true there was a shark on the belt pkwy?
Yes there was a Shark on the Belt parkway and it's true that happen after when i went to Altanta Georgia where the sign says Belt Pkwy West Verrazano Bridge and the reason that the belt parkway had traffic because of the shark swimming aruound the highway and later that day they closed the belt parkway because of the shark and the police clear the water and the shark back into the ocean do want to know how the shark put back into the ocean because the cars run over it and the shark died and get put back in the water the end.
How can you tell that a bony fish is not a cartilaginous fish?
If the fish has a back bone then it is considered as a bony fish :)
Why do sharks live in only salt water?
no, take for instance the Zambezi shark (also known as the bull shark) that often go into rivers (which naturally have fresh water) and cause a lot of deaths annually
Yes, and no. There are some passive sharks but there are sharks that are very territorial.
Are mako sharks herbivores carnivores or omnivores?
Pacific sleeper shark (Somniosus pacificus) is thought to be both a predator and a scavenging carnivore.
What is the migration route for bull sharks?
Bull sharks (Carcharhinus leucas) migrate from the ocean to rivers in order to give birth to pups. There, the youngsters live with relative safety from predators, feeding mostly on fish, until they reach maturity.
When the mating age comes, they return to salt water for reproduction and...
... to eat larger fish, including other sharks!
Which shark has the sharpest teeth?
Definitely. All do. They have many rows of sharp teeth. When one set falls out, instead of more teeth growing up and out of their gums, like our teeth, they use the next set of teeth. Otherwise, if they didn't have sharp teeth, they couldn't be carnivores.
Yes, but they are considered very rare. During years when the ocean temperature is warmer the sighting are more common.
How big can a Carcharhinus shark tooth get?
sharks teeth grow very big. up to [55cm] that is how big sharks teeth grow.
Greenland sharks eat salmon and other fish like that and they also eat crab, seals, and flesh from dead whales
What is the largest a Bala shark grows to?
A full grown bull shark can be around 10 to 11 meters in length. They can weigh over 320 kilograms or 700 pounds in weight. There have been cases of giant bull sharks that are as long as 13 meters in length. Such animals may weight well over 700 pounds.
Is deep water more or less dense than shallow water?
Shallow water is more dense than Deep water. This means that a wave travelling from deep water to shallow water would bend towards the normal. Also, the wave would travel slower in the shallow than in the deep water
Do bull sharks swim up rivers?
Yes, a Bull Shark could live in a river. Bull Sharks can survive in fresh water and have been found in the San Juan River, the Mississippi River, the Detroit River, and, many years ago, in the Missouri River.
