Sharks

Spiny dogfish Squalus acanthias (also known as spurdog, piked dogfish and a number of other names) has five gill slits, all situated in front of the pectoral fins. This is according to Fishes of the Sea by John and Gillian Lythgoe (Blandford Press, 1991). The FAO FishBase (www.fishbase.org) is a good source of information on this and many other species of fish.

Yes, sharks are considered a type of fish.
Technically, yes. They have fins and gills like regular fish do.
Yes a Shark is a fish they have gills unlike a whale or dolphin which have a blow hole for breathing in air.
Yes, sharks are fish.

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sorry i do not know # # hearing # seeing # smelling # touching # and tasting # but they use

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The Tsuranagakobitozame shark, also known as the goblin shark, can grow up to about 10-13 feet in length. They have a unique appearance with a long, flattened snout and distinctive jaws that can extend to capture prey.

to help the shark stay afloat

A female shark has a fin that is not as pointy....also it curves at the top...A males fin in straight and pointy.

The male shark will have two "cigar-like" cylindrical projections near the anal fins/anus. The female will not have these projections. These are not intermittent organs and are clearly visible. These projections are also visible in rays and chimaera. Shark dorsal fins are extremely variable and should not be the basis for sexual determination.

"Shark questions" could refer to inquiries related to shark biology, behavior, habitats, conservation, or attacks on humans. It's important to ask specific questions to get detailed and accurate information about sharks.

Some of the first sharks likely fed on small fish, invertebrates, and other marine organisms. As opportunistic predators, they may have scavenged on dead animals and utilized their sharp teeth to tear into prey. Their diet likely evolved over time as they adapted to different environments and food sources.

In a way. Sharks are made of cardilage instead of bone. Our ears and nose are made of cardilage. We eat meat like they do, but certaintly not as raw! But we are really not like sharks. We walk and breath air, and can communicate with words. We cook most of our meat, and we don't have gills, or fins, nor do we live underwater. We have bones instead of cardilage, and they can get about twice the size of us.

Yes. All living organisms eat. Adult horn sharks mainly eat hard-shelled molluscs, echinoderms, and crustaceans, and also feed opportunistically on a wide variety of other invertebrates and small bony fishes. Juvenile horn sharks prefer softer-bodied prey such as sea anemones and polychaete worms.

Sharks are apex predators, so they accumulate toxins like mercury or PCBs by eating contaminated prey. These toxins can come from exposure to pesticides and other pollutants in the ocean, leading to bioaccumulation in shark tissues. Consequently, consuming shark meat can pose health risks due to high levels of these toxic substances.

The Mako Shark is wanted for its tender meat and for their fins which can be used in medicines in Asian countries. In Hong Kong, shark fin soup can cost almost $100 for a single serving. As with most shark species, Mako Sharks are becoming smaller in number because they live a long life and have only a small number of babies.

Shark: Advantages include being apex predators with sharp teeth and strong jaws for hunting. Disadvantages include vulnerability to overfishing and habitat destruction. Remora: Advantages include the ability to hitch a ride on larger animals for transportation and protection. Disadvantages include dependency on a host for food and mobility, which can limit independence.

Sharks use gills to extract oxygen from water. As water flows over their gills, oxygen is absorbed into their bloodstream and carbon dioxide is released back into the water. Sharks must keep swimming to ensure a constant flow of oxygen-rich water over their gills.

Sharks are characterized by their cartilaginous skeleton, streamlined body, sharp teeth, and ability to detect prey using their keen sense of smell and electroreception. They also have multiple rows of teeth that continuously replace.

It is difficult to estimate the exact number of sharks in the wild. However, current estimates suggest that there are hundreds of different shark species and potentially millions of individual sharks spread across oceans worldwide.

The Shortfin Mako is the fastest species of shark. It's speed has been recorded at 50 kilometres per hour (31 mph) with bursts of up to 74 kilometres per hour (46 mph). They can leap approximate 9 metres (30 ft) high or higher in the air. Some scientists suggest that the shortfin mako can swim up to 100 kilometres per hour (62 mph), though scientists are still in debate over exactly how fast the shortfin mako shark can swim. This high-leaping fish is a highly sought-after game fish worldwide. There are cases when an angry mako jumped into a boat after having been hooked.

The field digger wasp preys on flies, specifically targeting them as a food source for their larvae. The wasp paralyzes the fly, then lays its eggs on it before burying it underground. The hatched larvae then feed on the immobilized fly, ultimately benefiting from a reliable food supply while controlling fly populations.

The Megamouth shark is a filter feeder, so it swims with its mouth wide open to feed on plankton and small fish. It relies on its large gill slits to filter out food particles from the water as it swims. This nocturnal shark will migrate vertically in the water column at night to feed on plankton that rises closer to the surface.

A denticle is a small pointed or tooth-like projection, typically found on the surface of a structure such as the skin of some sharks or the exoskeletons of certain insects. They provide protection and aid in the movement of the organism.

A pig-eyed shark, also known as a sixgill shark, has a broad, blunt head with small eyes positioned high on the sides of its head. It has six gill slits, which is a distinguishing feature as most sharks have five. The body is large and cylindrical, with a short, wide mouth containing multiple rows of teeth.

The bacteria found on the eye of a Greenland shark are mainly from the phylum Proteobacteria, particularly the species Moritella viscosa. These bacteria help the shark survive in its harsh deep-sea environment by aiding in digestion and potentially preventing infection.

While lying on your back, lift your legs up, and curl them up towards your chest. Your arms should be spread slightly, palms face down on the ground. Rock your body backwards until only your shoulders are touching the ground, then spring using your arms and the inertia from your legs going forward to jump up. This takes some practice.

Megalodon is an extinct species of shark that lived approximately 23 to 3.6 million years ago. It was one of the largest and most powerful predators to have ever existed, with estimates suggesting it could grow up to 60 feet in length. Despite its impressive size, Megalodon has been extinct for millions of years.

Yes, especially in the rivers. There is one species called the Ganges River shark which is resonsible for numerous attacks. The Bull shark is also present in Indian waters and is a very dangerous shark. It hunts in the murky waters of rivers and can easily mistake a human for a fish and attack. If you intend to go swimming in Indian waters, avoid any murky waters.