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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
Why do sharks close their eyes what they attack?
some sharks have full visability in there eyey so they are esential but other sharks such as the great white and the mako can only see in contrast so they eyes arn't as usefull but still needed
there is a lot of concern over sharks as there seems to be more sharks killed by humans than humans killed by sharks.
Its probably because it isn't fatty or rich enough for them. Many sharks such as the great white hunt animals rich in fat/blubber like seals because they[sharks] are cold blooded and need the extra minerals and such to keep kicking... or swimming in this case.
Whyd do people think sharks are dangerous?
people think that because of the movie aws and deep blue sea not all sharks are none of them are they ust think that we are there prey when we surf there prey is seal and othermarine life they hate they taste of blood but they love seal whale sharks and basken sharks are harmless so there not all sharks are killers and so are nurse sharks. good day
Why do sharks die if they don't move?
Some sharks would drown but other sharks can pump water over their gills so they don`t need to swim. Some sharks lie in wait for their prey to come to them.
What is the function of the kidney in a shark?
yes other wise they wouldn't be able to pea propaly and probably die
Can red tail sharks get along with rainbow sharks?
Any fish really. A lot of people say they are aggressive but they're only like that with other sharks. As long as they have theyre own hiding place they are usually fine and one of the more friendly sharks.
Are goblin sharks nearly extinct?
It has not been proven how many there are, they are located in Ganges river in India, and most likely be less then 50 around...
What does the port Jackson shark eat?
port jackson sharks eat reef dwelling creatures such as crabs oysters and sea snails
Why can sharks have 3000 teeth in their lifetime?
because they have like these escalators that push teeth forward when they loose a tooth so their not toothless in a section
What came first the shark or the crocodile?
dinousaurs then they were extinkt and crocodiles came along.
What is the difference between ancient shark and modern shark?
Prehistoric shakrs were WAY bigger than their present day cousins. For example, the Megalodon, a prehistoric cousin of the Great White, was 72-80 feet long! That's way longer than the 20 ft. Great White!
Do people call a whale a fish?
A common misconception is that all animals that live in water are fish, so some people mistakenly believe that whales are as well.
Pilot whales are cetaceans belonging to the genus Globicephala. There are two extant species, the long-finned pilot whale (G. melas) and the short-finned pilot whale (G. macrorhynchus). The two are not readily distinguished at sea and analysis of the skulls is the best way to tell the difference between them. Between the two species, pilot whales range in waters nearly worldwide with long-finned pilot whales living in cold waters and short-finned pilot whales living in tropical and subtropical waters. Pilot whales are among the largest of the oceanic dolphins, exceeded in size only by the killer whale. They and other large members of the dolphin family are also known as blackfish.
Pilot whales are primarily squid eaters but will feed on fish as well. They are also highly social and studies suggest that both males and females remain in their mothers' pods, an unusual trait among mammals which would also be found in certain killer whale communities. Short-finned pilot whales are also one of the few mammal species where females go though menopause and post-reproductive females may contribute to the survival of younger members of their pods. Pilot whales are notorious for stranding themselves on beaches, and are among the most common cetacean stranders. Several theories have been proposed to account for this behavior. The status of both species is not understood and they have been subject to direct and indirect catches by fisheries. Whalers in a few countries continue to hunt pilot whales.
What special adaptation do sharks have to help it survive?
The sharks adaptation helps them by reproducing with other sharks to keep the cycle going......
Why do most sharks have to swim all day or they will die?
Sharks do not have the ability to pump water across their gills, therefore they need to continue swimming to move water across their gills so they can breath
What evidence is there that the megaladon shark is extinct?
no there have been few stories of giant sharks which some claimed are the last megalodons but there is no proof these stories are true and they are proberly based on large great white sharks
How long do sixgill sharks live?
It depends.
There are two species of Sixgill sharks:
a) The larger Bluntnose sixgill shark (Hexanchus griseus), with about 5 metres lenght and weigh over 600 kg.
b) The mush smaller Bigeyed Sixgill shark (Hexanchus nakamurai), with maximum lenght of 2 metres and weigh about 20 kg.
Both are deep-water sharks, and are considered as chronospecies.
How streamline body of fish helps in swimming?
The streamline shape of a fish has lower friction. Also, vortices form from the movement of the tail which save energy when swimming
