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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

What is the estimated shark population in the world?

It is difficult to estimate the global shark population accurately due to various factors such as their wide distribution and varying population densities. However, some studies suggest that the global shark population has declined significantly due to overfishing and habitat destruction.

Who is nicknamed the shark?

Professional golfer Greg Norman is nicknamed "The Shark" due to his aggressive playing style and Australian background.

What kinds of animals live in the Neretic Zone?

From Wikipedia: The neritic zone, also called the sublittoral zone[1], is the part of the ocean extending from the low tide mark to the edge of the continental shelf, with a relatively shallow depth extending to about 200 meters. The neritic zone has generally well-oxygenated water, low water pressure, and relatively stable temperature and salinity levels. These, combined with presence of light and the resulting photosynthetic life, such as phytoplankton and floating sargassum[2], make the neritic zone the location of the majority of sea life. Zooplankton, free-floating creatures ranging from microscopic diatoms to small fish and shrimp, live in this zone, and together with phytoplankton form the base of the food pyramid that supports most of the world's great fishing areas. At the edge of the neritic zone the continental shelves end, rapidly descending to the deeper oceanic crust and the pelagic zone.

What is the skin color Nurse shark?

The normal skin colour of a Nurse Shark would be grey - brown

Name 4 type of shark and where yhey live?

  1. Great white shark - found in coastal waters worldwide, but mainly in temperate seas.
  2. Hammerhead shark - inhabits warm coastal waters around the world.
  3. Tiger shark - found in tropical and temperate waters across the globe.
  4. Whale shark - inhabits tropical and warm-temperate seas.

Some ancient peoples used abrasive shark skin for what purpose?

Ancient peoples used abrasive shark skin to create tools, such as scrapers and knives, due to its rough texture. Shark skin was effective for tasks that required cutting, slicing, or smoothing materials like wood, bone, or hides. Additionally, shark skin was sometimes used as sandpaper for polishing and finishing surfaces.

Under what conditions do shark attacks occur?

Shark attacks may occur when there's a feeding frenzy going on and a shark gets excited and ACCIDENTALLY attacks a nearby human. It can also happen when there's a surfer on a board and from under water, it looks like the surfer is a seal.... and you know, it attacks the human. Trust me.... I study this stuff in ALP.

How much do a shark eat in a day?

The amount of food a shark eats in a day depends on the type of shark. The Blue Shark eats until is starts to vomit up its food, the goes right back to eating again. The Great White shark eats around 500 pounds of food per day. On the other hand, there are sharks that can go for weeks without eating.

What is the second heaviest shark?

The second heaviest shark is the tiger shark (Galeocerdo cuvier). They can weigh up to around 1,900 pounds (900 kg) on average. Great white sharks are usually considered the heaviest shark species.

What is the lightest shark?

The dwarf lanternshark (Etmopterus perryi) is considered the smallest and lightest shark species. They typically grow to be about 8 inches in length and weigh less than a pound.

How many teeth does a bull shark have?

A bull shark typically has around 50-65 rows of teeth in each jaw, with each row containing about 7 teeth. This means an adult bull shark can have around 300-350 teeth in total. They constantly shed and replace their teeth throughout their lifetime.

Why are there over 300 shark attacks off the coast of Australia?

Australia is known for having the world's largest reef, the Great Barrier Reef, and that is home and sanctuary for millions of fish, and thereby sharks. They will tend to go where there is an ample food supply. And the reefs are thriving at reefs! Smaller sharks like to hunt there, because of the vast assortment of fish, think of a reef as a buffet! They can hear all the fish they want when it gets dark. Humans swimming anywhere near a reef or drop-off are putting themselves on the list! It is that simple. As a rule, sharks don't want to eat humans. They will look for seals, pinipeds, and young whales because of the high blubber content

Why is there so many shark attacks off the coast of Australia?

The warm waters. Sharks perfer warmer water rather then cold.. Thats why you find sharks in placs suck as california where the water is warm. And they fallow thier food source,which is primarily the seals. They also fallow the warmer water

Hawaii has only 40 known species of sharks, not as many as other places in the world. The island chain has only specie of seal, the endemic, critically endangered Hawaiian monk seal, which numbers just barely over 1,000 animals, not enough for white sharks to travel thousands of miles for. Tagging whites has proven many congregate in the eastern pacific between Hawaii and Mexico. Researchers speculate this may be a breeding area but further studies are needed for conclusive evidence. Sharks do NOT prefer warmer water. There are sharks that live under ice (Greenland shark) and other cold water places. (reefannie)

What biome do sharks live in?

Almost every animal lives in one specific biome. A killer whale (and all whales) live in the ocean or marine biome.

Where does a zebra shark live?

Zebras are can be a wild animal if they don't belong to a zoo, so zebras live in the wild. Places such as Africa are where zebras live

What Ocean contains the most sharks?

The Pacific Ocean is home to the most diverse population of sharks, with over 300 different species known to inhabit its waters. The warm waters of the Pacific provide an ideal environment for sharks to thrive and there are many popular shark diving destinations in the region, such as Hawaii and Australia.

How many people get killed by sharks?

There are just 67 deaths by sharks in the whole world. Often the shark may see a flash of white (a person's leg or arm) and mistake it for a fish. Sometimes people in dark wet suits are mistaken for seals. Many sharks are simply curious like dolphins, but since dolphins are of no threat and love to play with humans, the shark is menacing looking and the blame has been laid by scientists on the movie JAWS.

1,000 people in the world drown for every shark attack or shark related death. Believe it or not (by scientists studies) for every 60 bites from a shark there are 25% of New Yorkers that bite each other!

Much of the blame for a frenzy of sharks coming closer into shores of beaches is blamed on 'baiters' for tour boats. They throw out blood and entrails of fish to entice the sharks just so the folks on the tour boats can see a real live shark. One shouldn't play with mother nature!!! Now surfers and other beach goers are blaming these shark tours for more sharks sticking closer to shores of beaches.

I've read many stories where a shark has been curious over a human and circles them. They may come close and all it takes is a punch on the end of their nose or a poke in the eye if the person in the waters feels the shark is getting too close and generally the shark will leave. If there is a feeding frenzy going on with sharks with a large group of fish a diver may get mixed up in the whole thing and be bitten or chewed to death.

Sharks are one of the oldest creatures besides the Blue Whale in the world. It would be a terrible thing if people were so ignorant they didn't educate themselves on sharks and realize they help clean up our oceans and have a reason for being there. Like any animal that is wild, one should learn about them, respect their turf and coincide with nature. If people persist on taking chances or not reading signs that are apparent on many beaches of shark warnings then they pretty much get what they deserve. Many of the people who have reported shark attacks have actually been divers and some surfers.

I agree with baiting for sharks and that they cause an imbalance of nature bringing the shark closer to crowded beaches or coastlines.

Should we kill sharks? No! We are the interlopers in their turf and we should respect the warnings.

What are small sharks called?

Small sharks are often referred to as "pups" or "juveniles." They can also be classified based on their species, such as "dwarf lanternshark" or "dwarf catshark."

What is the most deadlest shark?

great white shark The great white shark is fat but when it bites you it crushes you.

And there is a really low chance that megaladon sharks are in our planet, because none people we attacked by a megalodon shark before

Do sharks have backbones?

No! They are made of cartilage.

What do a sea lampreys eat?

Sea lampreys are parasitic fish that feed on the blood and body fluids of other fish and sometimes on mammals. They use their suction-cup mouth and sharp teeth to attach to their prey and then use their rasping tongue to suck out the fluids.

Why won't a shark attack prey if dolphins are around?

Sharks may avoid attacking prey if dolphins are present because dolphins are known to exhibit aggressive and protective behavior towards potential threats, including sharks. The presence of dolphins can create an unpredictable and risky situation for the shark, which may deter them from attacking. Additionally, dolphins are fast and agile swimmers, making it difficult for a shark to successfully catch their prey in the presence of dolphins.

How do sharks obtain oxygen?

Shark have gills, just like fish, that water flows through. Oxygen in the water is absorbed by blood rich capillaries in the gills, which then circulates the oxygen to the rest of the sharks body.