Sharks (Selachii) are one of the oldest animal species on earth having outlived the dinosaurs with fossil records dating them back 400 million years. Most sharks live in saltwater environments, although two species can survive in freshwater and saltwater. In their ecosystems, the carnivorous shark is usually the top of their food chain, but are being threatened by human activities and hunting. The largest fish in the world is the Whale Shark, capable of growing to 40 feet (12.2 m) in length. Sharks have multiple rows of teeth that are embedded in their gums instead of their jaws, and are constantly losing and replacing their teeth—sharks can lose and replace up to 30,000 teeth in their lifetime.

How many bones do sharks have?

Sharks do not have any bones in their bodies, as their skeleton system is made up of cartilage and connective tissue. This classifies them as Chondrichthyes fish. Cartilage is flexible and has about half of the normal density found in bones.

What do sharks eat?

The diet of a shark varies from shark to shark depending on the species, habitat, and available prey. There are over 400 species of sharks. Most sharks are carnivorous and predators, while some are planktivorous. Sharks aren’t picky and are able to adjust their diet to what is available in order to survive.


How do sharks sleep?

It is not known if sharks are able to sleep, but they do seem to have periods of rest. Sharks need to keep water moving over their gills to receive oxygen. Some sharks need to keep moving all the times to keep water over their gills, while others have spiracles, an opening behind each eye, that allows them to breath while they are still.

Sharks Guides
Browse through our curated Sharks Guides for additional categorizations, tips, details, variations, styles, and histories of Sharks. Guides provide additional insights into the unique properties and shared relationships between elements.
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22’-35’ | 6.7-10.7 m
8800-13200 lb | 4000-6000 kg
Up to 50 years
Basking Shark
1070.000
6000.000
50.00
57000
3D
Basking Shark
8.5’-13’ | 2.6-4 m
120-400 lb | 54-181 kg
15-20 years
Blue Shark
400.000
181.000
20.00
16000
3D
Blue Shark
7’-11.5” | 2.1-3.5 m
400-700 lb | 181-318 kg
12-25 years
Bull Shark
350.000
318.000
25.00
56000
3D
Bull Shark
5’-12.5’ | 1.5-3.8 m
330-463 lb | 150-210 kg
30-35 years
Goblin Shark
380.000
210.000
35.00
82000
3D
Goblin Shark
11’-21’ | 3.35-6.4 m
1500-2400 lb | 680-1090 kg
30-70 years
Great White Shark
640.000
1090.000
70.00
133000
3D
Great White Shark
12’-24’ | 3.7-7.3 m
1950-2250 lb | 885-1020 kg
300-500 years
Greenland Shark
730.000
1020.000
500.00
55000
3D
Greenland Shark
7.5’-11’ | 2.3-3.4 m
190-400 lb | 86-181 kg
25-35 years
Lemon Shark
340.000
181.000
35.00
27000
3D
Lemon Shark
4’-7’ | 1.2-2.1 m
35-45 lb | 16-20 kg
20-30 years
Leopard Shark
210.000
20.000
30.00
15000
3D
Leopard Shark
13’-18’ | 4-5.5 m
2000-2700 lb | 907-1225 kg
Unknown
Megamouth Shark
550.000
1225.000
28000
3D
Megamouth Shark
7.5’-10’ | 2.3-3 m
200-330 lb | 91-150 kg
15-25 years
Nurse Shark
300.000
150.000
25.00
35000
3D
Nurse Shark
6.5’-10’ | 2-3 m
485-1000 lb | 220-454 kg
20-30 years
Salmon Shark
300.000
454.000
30.00
11000
3D
Salmon Shark
7’-10.5’ | 2.1-3.2 m
200-400 lb | 91-182 kg
10-15 years
Sand Tiger Shark
320.000
182.000
15.00
12000
3D
Sand Tiger Shark
10.5’-20’ | 3.2-6.1 m
500-775 lb | 227-352 kg
20-50 years
Thresher Shark
610.000
352.000
50.00
30000
3D
Thresher Shark
10’-14’ | 3-4.3 m
850-2000 lb | 385-907 kg
15-30 years
Tiger Shark
430.000
907.000
30.00
69000
3D
Tiger Shark
30’-62’ | 9.1-18.9 m
41000-50000 (20.6-25 tons) | 18600-22675 kg
70-130 years
Whale Shark
1890.000
22675.000
130.00
110000
3D
Whale Shark
6.5’-11.5’ | 2-3.5 m
45-65 lb | 20-30 kg
20-30 years
Zebra Shark
350.000
30.000
30.00
7100
3D
Zebra Shark
Great White Shark
Dimensioned size comparison drawing of a Great White Shark compared to the size of an average human scuba diver

The Great White Shark is a large mackerel shark that is found in coastal surface waters of all the major oceans. The species is also referred to as the great white, white shark, or white pointer for its notable size. Other distinguishing characteristics include its robust, large, conical snout, rows of serrated teeth behind the main ones, and large eyes with deep blue irises.

Further, it displays countershading by having a white underside and grey dorsal area. The great white shark has no natural predators and it is responsible for more recorded human bite incidents than any other shark.

The typical female Great White Shark has an overall length of 15’-21’ (4.57-6.4 m), with males at lengths of 11’-13’ (3.35-3.96 m). An average Great White Shark weighs between 1500-2400 lb (680-1090 kg) and has a typical lifespan of 30-70 years.

Pair of drawings of a Great White Shark as seen from the front and the top views
The Great White Shark is a large mackerel shark that is found in coastal surface waters of all the major oceans. The Great White Shark species is notable for its size and has no natural predators. It is responsible for more recorded human bite incidents than any other shark.

The typical female Great White Shark has an overall length of 15’-21’ (4.57-6.4 m), with males at lengths of 11’-13’ (3.35-3.96 m). An average Great White Shark weighs between 1500-2400 lb (680-1090 kg) and has a typical lifespan of 30-70 years.

Pair of drawings of a Great White Shark as seen from the front and the top views
Great White Shark
Height:
Width:
Length:
11’-21’ | 3.35-6.4 m
Depth:
Weight:
1500-2400 lb | 680-1090 kg
Area:

Length (Male): 11’-13’ | 3.35-3.96 m
Length (Female): 15’-21’ | 4.57-6.4 m

Speed
35 mph | 56 km/h
Scientific Name
Carcharodon carcharias
Lifespan
30-70 years

Drawings include:
Great White Shark side elevation, side (scuba diver), front, plan

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Tiger Shark
Comparison illustration of the size of a Tiger Shark to a typical person

The Tiger Shark (Galeocerdo Cuvier) is a shark species named for its dark and vertical stripes on its body resembling those of a tiger. They are found in tropical waters specifically around the central Pacific Ocean. Tiger Sharks are solitary and hunt at night.

They are considered one of the world’s most dangerous sharks following the Great White Shark. The diet of the Tiger Shark varies and they eat anything from crustaceans, fish, seals, birds, squid, turtles, sea snakes, dolphins, and even other small sharks. The Tiger Shark is considered a near threatened species due to fishing by humans.

Tiger Sharks have a total length between 10’-14’ (3-4.3 m) and an overall weight in the range of 850-2000 lb (385-907 kg). The typical lifespan of the Tiger Shark is 15-30 years.

Scaled collection of drawings of Tiger Shark in various poses
The Tiger Shark (Galeocerdo Cuvier) is a shark species named for its dark and vertical stripes on its body resembling those of a tiger. They are found in tropical waters specifically around the central Pacific Ocean. Tiger Sharks are solitary and hunt at night.

Tiger Sharks have a total length between 10’-14’ (3-4.3 m) and an overall weight in the range of 850-2000 lb (385-907 kg). The typical lifespan of the Tiger Shark is 15-30 years.

Scaled collection of drawings of Tiger Shark in various poses
Tiger Shark
Height:
Width:
Length:
10’-14’ | 3-4.3 m
Depth:
Weight:
850-2000 lb | 385-907 kg
Area:
Speed
Scientific Name
Galeocerdo cuvier
Lifespan
15-30 years

Drawings include:

Tiger Shark side elevation, side (perspective), front, top

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Sand Tiger Shark
Scale illustration of an average Sand Tiger Shark with dimensions for height and length compared to a human

The Sand Tiger Shark (Carcharias Taurus), also referred to as the spotted ragged-tooth shark, is a shark species with brown-gray skin with rust color spots on their back and white underside. They are generally found in the shores of subtropical waters like Japan, Australia, South Africa, and the Mediterranean.

Sand Tiger Sharks eat crustaceans, fish, and squid. They are active predators and feed throughout the night by staying close to the bottom. Sand Tiger Sharks are vulnerable to extinction as they have one of the lowest reproduction rates among all sharks.

Sand Tiger Sharks have a total length between 7’-10.5’ (2.1-3.2 m) and an overall weight in the range of 200-400 lb (91-182 kg). The typical lifespan of the Sand Tiger Shark is between 10-15 years.

Series of elevation illustrations of the Sand Tiger Shark
The Sand Tiger Shark (Carcharias Taurus), also referred to as the spotted ragged-tooth shark, has brown-gray skin with rust color spots on their back and white underside. They are generally found in the shores of subtropical waters like Japan, Australia, South Africa, and the Mediterranean.

Sand Tiger Sharks have a total length between 7’-10.5’ (2.1-3.2 m) and an overall weight in the range of 200-400 lb (91-182 kg). The typical lifespan of the Sand Tiger Shark is between 10-15 years.

Series of elevation illustrations of the Sand Tiger Shark
Sand Tiger Shark
Height:
Width:
Length:
7’-10.5’ | 2.1-3.2 m
Depth:
Weight:
200-400 lb | 91-182 kg
Area:
Speed
Scientific Name
Carcharias taurus
Lifespan
10-15 years

Drawings include:

Sand Tiger Shark side elevation, side (perspective), front, top

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Basking Shark
Comparison illustration of the size of a Basking Shark to a typical person

The Basking Shark (Cetorhinus Maximus) is the second largest shark, after the whale shark. It has a gray-brown coloring with marble-like skin pattern. They are found in all temperate oceans of the world. Basking Sharks do not hibernate, are active all year, and do not stay in one place for more than a couple months.

During the winter, Basking Sharks swim to deeper waters. Basking sharks are filter feeders that feed passively while swimming and typically eat zooplankton, copepods, barnacles, decapod larvae, fish eggs, and shrimp. The Basking Shark is considered to be endangered.

Basking Sharks have a total length between 22’-35’ (6.7-10.7 m) and an overall weight in the range of 8800-13200 lb (4000-6000 kg). The typical lifespan of the Basking Shark is Up to 50 years.

Scaled collection of drawings of Basking Shark in various poses
The Basking Shark (Cetorhinus Maximus) is the second largest shark, after the whale shark. It has a gray-brown coloring with marble-like skin pattern. They are found in all temperate oceans of the world. Basking Sharks do not hibernate, are active all year, and do not stay in one place for long.

Basking Sharks have a total length between 22’-35’ (6.7-10.7 m) and an overall weight in the range of 8800-13200 lb (4000-6000 kg). The typical lifespan of the Basking Shark is Up to 50 years.

Scaled collection of drawings of Basking Shark in various poses
Basking Shark
Height:
Width:
Length:
22’-35’ | 6.7-10.7 m
Depth:
Weight:
8800-13200 lb | 4000-6000 kg
Area:
Speed
Scientific Name
Cetorhinus maximus
Lifespan
Up to 50 years

Drawings include:

Basking Shark side elevation, side (perspective), front, top

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Thresher Shark
Dimensioned comparison drawing of the Thresher Shark compared to an average person

The Thresher Shark (Alopias Vulpinus) is a shark species known for its extremely long tail that they use while hunting for food. They can be found along the coasts of North America and Asia in the Northern Pacific Ocean. Thresher Sharks typically eat meat, liver, skin, and fins.

They are not often involved in shark attacks, but are hunted for their skin that is turned into leather and the oil in their liver that can be used for vitamins. Thresher sharks have been identified as vulnerable to extinction since the year 2007.

Thresher Sharks have a total length between 10.5’-20’ (3.2-6.1 m) and an overall weight in the range of 500-775 lb (227-352 kg). The typical lifespan of the Thresher Shark is between 20-50 years.

Set of scaled elevation drawings of the Thresher Shark
The Thresher Shark (Alopias Vulpinus) is a shark species known for its extremely long tail that they use while hunting for food. They can be found along the coasts of North America and Asia in the Northern Pacific Ocean. Thresher Sharks typically eat meat, liver, skin, and fins.

Thresher Sharks have a total length between 10.5’-20’ (3.2-6.1 m) and an overall weight in the range of 500-775 lb (227-352 kg). The typical lifespan of the Thresher Shark is between 20-50 years.

Set of scaled elevation drawings of the Thresher Shark
Thresher Shark
Height:
Width:
Length:
10.5’-20’ | 3.2-6.1 m
Depth:
Weight:
500-775 lb | 227-352 kg
Area:
Speed
Scientific Name
Alopias vulpinus
Lifespan
20-50 years

Drawings include:

Thresher Shark side elevation, side (perspective), front, top

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