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.
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Necessary Necessary. Necessary cookies are absolutely essential for the website to function properly. Sharks can find and recognise these molecules — like parts of blood — that have been released from wounded animals or other prey, because their sense of smell is much better than ours. Nares are loaded with powerful sensors. Once a shark has locked onto a smell, it can then work out where it came from by swimming towards it and moving its head slightly from side to side.
What they can do is detect blood at one part per million, which is similar to detecting tiny drops of blood in the water from up to five kilometres away! Alternatively, a shark stretching its jaws, which they sometimes do after a meal, might be mistaken for a sneeze. Hello, curious kids! Ask an adult to send your question to us. When the egg hatches, the shark pup continues developing inside the female until it's born.
Ilir Puschke Pundit. How many sharks are killed per hour? By using the data in the report, Chernov and Richards determined that 11, sharks are killed per hour see graph below.
Odelinda Moner Pundit. Do you poke a shark in the eye? As with all animal attacks, the best advice is to go for the eye. If you poke something in the eye , it will stop what it is doing.
Sharks have a protective eyelid-like barrier called a nictitating membrane, but it's designed to protect from a thrashing fish caught in that shark's jaws and not from fingers. Jada Bereau Pundit. How far can sharks smell blood? Great white sharks can detect one drop of blood in 25 gallons liters or water and they can sense even a little blood up to 3 miles 5 km away, according to National Geographic,.
They use their acute sense of smell to detect blood using an organ called the olfactory bulb. Lupicinio Torio Pundit. Can Sharks hear? Sharks hear sounds with frequencies ranging from 10 hertz to hertz, and are especially responsive to sounds lower than hertz, easily detecting prey at distances of more than feet two football fields. In comparision, humans hear sounds ranging from 25 hertz to 16, hertz. Yes, they can! Quinti Egof Teacher. Do all sharks smell blood? While some sharks can detect blood at one part per million, that hardly qualifies as the entire ocean.
Sharks do , however, have an acute sense of smell and a sensitive olfactory system--much more so than humans. Lokman Totten Teacher. Do sharks have tongues? Sharks have a tongue referred to as a basihyal. The basihyal is a small, thick piece of cartilage located on the floor of the mouth of sharks and other fishes.
It appears to be useless for most sharks with the exception of the cookiecutter shark. Ines Mecinas Teacher. Do sharks taste their food? Evidence suggests that sharks can taste their food , and that they have preferred prey. Small taste buds line the mouth and throat of sharks , and they seem to reject foods based on their taste. Sharks and other fish have a specialized, very sensitive receptor system for detecting these types of water movements.
Bidane Hurtgen Teacher. How far away can Sharks hear your heartbeat? Sharks can detect the heartbeat of their prey. It is TRUE.
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