Sharks how many

Are sharks afraid of humans? If so why? My favorite type of shark is a great white shark because they are really cool. Feb 6, Thanks for sharing your thoughts, bea s!

Oct 8, Robert Nov 5, I think people like sea food with sharks in them probe. May 25, Kaileah May 15, May 21, May 24, May 14, Shane May 9, Charles May 7, Do sharks have lungs or gills? They come up for air but in the water they don't blow bubbles or anything they are normal as if they have gills.

May 9, Charles May 9, We're happy to help! Hi, sarai! Sharks do sometimes eat trash that is found in the oceans. HI my name is Michael and I think that Wonderopolis is the best website to learn something.

Hi, Michael! MartinAV24 Jan 18, I thought sharks were scary and horrible, but no there really just protect them selfs. Why do they call them sea dogs? Jan 22, Camposks24 Jan 18, I wonder how scientist find out about all these types of sharks? Jan 25, Becky Jan 18, I would recommend to answer your title question whickph is how many sharks are still leaving in the world, but in addition I liked the information you said.

Thanks, Becky! Anne Jan 5, I enjoyed reading the facts about sharks and it definitely worrys me that million sharks are killed each year but I also think it is important that we recognise that sharks and not primarily killed for food but rather are killed after being caught in nets for fish intended to be eaten - for every pound of intended fish caught 5 pounds of unintended fish are caught including dolphins, whales and sharks.

With between billion sharks being bi-kill each year - however I still appreciate the work you are doing to inform people about this topic. Jan 9, Alexandria Jan 4, Peter Oct 24, Oct 26, Aug 31, Tanner May 17, May 18, Dory Aug 29, Hi i'm dory and i have short term memory loss that is why they did a movie. Hi, Dory! Have you met the shark Bruce?? Josh Aug 18, Aug 20, The world is a pretty wonderful place, Josh!!

Gavin Apr 11, Apr 12, Vivian Jan 4, I did not know that fisherman are the ones who are killing the sharks! But how? Jan 4, Dec 16, Karter Sep 12, This is cool I wish I knew about this when shark week was here!

But it is cool to learn about sharks!!!!! Sep 13, We're glad you found this Wonder about sharks, Karter! Tianna Apr 8, Apr 11, Thanks for being a supportive Wonder Friend, Tianna! Mar 4, That's interesting, fletcher! Did you catch any?

Feb 20, Thanks for your comment! I never knew that sharks don't have bones. Feb 19, Hi, trinity! You will be amazed at how many! There are more than species! Tim May 16, May 16, It doesn't. That number is changing all the time. Hamish Feb 15, Feb 17, We're glad you learned something new, Hamish! Thanks for visiting Wonderopolis! Feb 15, Great question, george! Use the search box to find related Wonders!

Jeremy Feb 5, If a shark can eat sharks how big will it get. I need to know how many sharks live in the ocean for a report. Feb 3, Jan 29, Risekeilani Jan 27, Jan 28, Inga Jan 27, This is a good article, but it doesn't specifically say how many sharks there are in the ocean.

I just wanted to know Thanks, Inga. Madeline Jan 27, Quint jones Jul 23, Jul 24, Dec 3, Joel Nov 18, Sharks don't attack people it probably smells your blood if you have a cut. Thanks for joining the discussion, Jeremy! That's a very popular theory! Nov 19, Kitty Nov 15, Wow that video was amazing but does sharks normally eat people or do they just eat people just to keep their hunger up to survive?

I think the sharks only eat people only to keep their hunger up. Wonderopolis can you guys please answer my question so I know that I'm right or wrong. Thank you if you answer my question. Nov 16, Grace Nov 15, Things I Learned: 1. Bull sharks and river sharks live in fresh water and salt water. Sharks don't have bones, they have cartilage! Some people kill sharks to eat them.

A question I have: What is the largest shark in the world? Aug 15, Dan Aug 15, The Great White Shark, most dangerous in the ocean.

Dec 22, Where did you find this information, ? Dilynn Oct 2, Oct 5, Nicholas Sep 15, Sep 17, Sep 19, Sep 8, Sep 2, Sep 1, Hi, joey! There are lots of sharks in the ocean We're glad you joined the discussion, Jeremy! We hope you had fun exploring this Wonder! Aug 25, Noah Burnside Feb 12, Why do you not have megalodons history.

They are still alive. Wonderopolis Feb 12, Yumi Nov 8, I Wonder How Sharks get their Babys? Wonderopolis Nov 10, Junior James Jan 5, Jan 6, Thanks for sharing that interesting fact, Junior James!

Wonderopolis Oct 28, Tom Oct 13, Wonderopolis Oct 14, It's unlikely that a shark would drown, but it is possible. Thanks for stopping by! Mark Jan 10, I learned I was surprised. I want more about the whale shark. It was awesome. Wonderopolis Jan 10, Elizabeth Nov 21, I loved learning about sharks. My favorite fact was that sharks have existed more than million years!

I can't believe that they are older than the dinosaurs! Do you know which ocean has the most sharks? Wonderopolis Nov 21, Frankie Nov 20, Wonderopolis Nov 20, Wonderopolis Sep 24, LaLonde's Class Sep 10, We learned that million sharks are killed by people each year. That made us feel sad and disappointed. We were surprised to learn that sharks don't have bones. We felt our ears to feel what cartilage felt like. Wonderopolis Sep 10, Richard May 15, I have to admit I once tried shark-fin soup at a wedding in the Far East.

I feel a bit guilty about it, but at least my consumption is still below world average. Wonderopolis May 16, That was the same question I was going to ask, Briauna!

Wonderopolis Apr 8, Karina Apr 6, What is the estimated number of sharks remaining in the world? Wonderopolis Apr 7, Briauna Feb 7, Wonderopolis Feb 7, Jazmine Jan 25, Awesome sharks are so cool and I want to ride one one day. Wonderopolis Jan 25, Isabella Dec 6, Wonderopolis Dec 7, Levin B.

Nov 21, I am very interested about sharks. My question about sharks is: Do sharks have a tongue? William H Nov 19, Many thanks Wonderopolis's reply but I wonder about my question is: "The average life expectancy of a shark? Wonderopolis Nov 19, William H Nov 18, I am William H. He has been a scientist at Woods Hole Oceanographic Institution since Gregory Skomal is an accomplished marine biologist, underwater explorer, photographer, and author. He has been a fisheries scientist with the Massachusetts Division of Marine Fisheries since and currently heads up the Massachusetts Shark Research Program.

For more than 30 years, Greg has been actively involved in the study of life history, ecology, and physiology of sharks. His shark research has spanned the globe from the frigid waters of the Arctic Circle to coral reefs in the tropical Central Pacific.

Much of his current research centers on the use of acoustic telemetry and satellite-based tagging technology to study the ecology and behavior of sharks. He has written dozens of scientific research papers and has appeared in a number of film and television documentaries, including programs for National Geographic, Discovery Channel, BBC, and numerous television networks.

His most recent book, The Shark Handbook, is a must buy for all shark enthusiasts. Robert D. He served in the U. Navy for more than 30 years and continues to work with the Office of Naval Research.

A pioneer in the development of deep-sea submersibles and remotely operated vehicle systems, he has taken part in more than deep-sea expeditions. In , he discovered the RMS Titanic , and has succeeded in tracking down numerous other significant shipwrecks, including the German battleship Bismarck , the lost fleet of Guadalcanal, the U. He is known for his research on the ecology and evolution of fauna in deep-ocean hydrothermal, seamount, canyon and deep trench systems.

He has conducted more than 60 scientific expeditions in the Arctic, Atlantic, Pacific, and Indian Oceans. Sunita L. Her research explores how the larvae of seafloor invertebrates such as anemones and sea stars disperse to isolated, island-like habitats, how larvae settle and colonize new sites, and how their communities change over time.

Kirstin also has ongoing projects in the Arctic and on coral reefs in Palau. Her work frequently takes her underwater using remotely operated vehicles and SCUBA and carries her to the far corners of the world.

What are they? Sharks are elasmobranchs, a group of animals that includes rays and skates, whose members have a skeleton made of cartilage, rather than bone, and, unlike most other fish, lack a swim bladder. How many? Steep declines in shark and ray numbers in the Atlantic Ocean began to stabilize somewhat after amid conservation measures, while the rate of loss has also slowed in the Pacific Ocean.

Many species of shark are migratory, meaning their protection requires the cooperation of different countries, while much of the harmful fishing occurs in the largely ungoverned high seas. Mariah Pfleger, marine scientist at Oceana, added that countries should also ban the sale and trade of shark fins. The ocean conservation group is pushing for the US to adopt such a ban, as Canada enacted in This article is more than 9 months old.

Increase in fishing since the s has ravaged abundance of sharks and rays in oceans.