There are over 480 species of sharks in our oceans. But only a few of them are dangerous to humans.
The most well-known sharks are the Great White, Tiger Shark and Bull Shark. But there are many more shark species that you may not have heard of before.
Sharks come in all shapes and sizes – some look like rays, others like eels. Some have long dorsal fins, others have short ones. There are sharks with barbels (fleshy feelers around their mouths) and some that don’t even have teeth!
There are two main types of sharks:
- Cartilaginous – These sharks have skeletons made from cartilage instead of bone, which means they can get out of tight spaces more easily than bony fish like us! They also have 5 gills on each side – 2 on top and 3 underneath their bodies
Sharks are fish that have been around for hundreds of millions of years. The earliest known species dates back to 450 million years ago, but they didn’t become common until the Devonian period, around 360 million years ago.
There are more than 500 different species of sharks in existence today, including some 130 species that live in the oceans off the coast of North America. While there are many species that are very similar in appearance, there are also some very unique and interesting ones out there!
How Many Different Breeds Of Sharks Are There
The Tiger Shark
The Tiger Shark has a large body with a flattened head and a short snout. It has 5 gill slits on each side and no anal fin. Its mouth is lined with sharp teeth and there are usually about 21 rows of teeth arranged in several groups. The coloration varies from grayish brown to light yellowish grey above with darker spots or blotches, which fade with age and may be more prominent on juveniles than on adults. The underside is white or pale yellowish white with dark spots or blotches sometimes forming indistinct bands across the abdomen; often these spots form vertical rows along the abdomen as well as being concentrated around the axils (where fins attach).
There are more than 400 different species of sharks, ranging from less than a foot long to more than 50 feet long. But most people only know the big ones — the great whites, makos and hammerheads they see on TV or in the movies.
Not all sharks are dangerous. Some are even friendly. Most sharks have several rows of teeth that continuously grow in size as they age. They use their teeth for eating prey and fighting with other animals.
Sharks come in all sizes and shapes, but most have five gill slits and two dorsal fins. Some species have one dorsal fin, while others have two or three. The spiny dogfish shark has no dorsal fin at all, but it does have a rough hide with sharp spines on its back to protect itself from predators.
Sharks are found throughout the world’s oceans at depths from the surface down to about 5 miles (8 kilometers). They prefer warm water temperatures between 64°F (18°C) and 82°F (28°C).
There are over 400 species of sharks, but only 30 or so are considered to be dangerous to humans. These include great whites, makos and tiger sharks.
The most popular shark used in aquariums is the nurse shark, which is a bottom-dwelling species that rarely reaches lengths greater than five feet. The whale shark is the largest fish in the world, growing up to 40 feet long.
The most famous sharks are those that have been featured in movies and television shows like Jaws and Finding Nemo. These include great white sharks, hammerheads and lemon sharks. Sharks can live anywhere from 15 years to 100 years depending on the species.
Some species of sharks are more dangerous than others because they attack humans more often or because their teeth are sharper than others. The bull shark has been known to attack humans more frequently than other types of sharks because it can tolerate fresh water as well as salt water environments
Sharks are one of the oldest and most diverse groups of fish in the world. There are about 400 species of shark, ranging from the massive whale shark to the tiny dwarf lanternshark.
There are five main types of sharks:
The majority of sharks belong to the Squaliformes order and include dogfish, mackerel sharks, ground sharks and bramble sharks. These sharks have a rounder snout and are more closely related to rays than other types of shark.
The largest group is the Carcharhiniformes order, which includes hammerhead, angel and bullhead sharks. These sharks have a flattened head with two dorsal fins that face sideways rather than forwards like most other fish do. This group includes some of the most well-known species like tiger and hammerhead sharks.
The second largest family is Lamniformes order, which includes mackerels, makos and porbeagle sharks. They have large mouths filled with sharp teeth used for catching fish and smaller prey such as squid or turtles. Mako sharks are streamlined predators that can reach speeds of up