Oceanic | Marine Animals

The oceanic biome is by far the largest biome on Earth with 70% of the Earth being covered by the ocean. It is estimated that 1 million species live in the ocean, with most of those, about 95%, being invertebrates, like jellyfish and shrimp. There are also a few mammals, like Dolphins and Sea Lions, that live in the ocean with the largest being the Blue Whale. Although the ocean is one continuous body water, there are five different oceans: the Pacific, Atlantic, Indian, Antarctic, and Arctic. Being such a vast biome, it is believed that only about 5% of the ocean has been explored—leaving many more species of plants and animals undiscovered.

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Oceanic | Marine Animals

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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’ (4.57-6.40 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’ (4.57-6.40 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’-13’ | 3.35-3.96 m (Male); 15’-21’ | 4.57-6.40 m (Female)
Depth:
Weight:
1500-2400 lb | 680-1090 kg
Area:
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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Sperm Whale
Side elevation illustration of a Sperm Whale with dimensions for overall length and a scuba diver for scale

A Sperm Whale is a predator and is the largest toothed whale in the oceans. Sperm whales can live up to 60 years and baby whales (calves) are raised with their mothers a quarter of their life. The name sperm whale comes from the whaling industry that hunted them for oil lamps, lubricants, and candles. The sperm whale has a unique look characterized by its block-shaped head and its distinct blowhole. Sperm whales’ prey off squid and octopus. Sperm whales can weigh in over 40 tons and have a length of 50 feet (15 m), making it one of the biggest sea animals.

The typical Sperm Whale has an overall height of 6’9”-11’ (2.06-3.35 m) and body length of 39’-62’ (12-19 m). An average Sperm Whale weighs between 38.5-65 tons (35-59 metric tons) and has a typical lifespan of 60-70 years.

Pair of top and bottom drawings of a Sperm Whale
The Sperm Whale is the largest toothed whale in the oceans. Sperm whales can live up to 60 years and baby whales (calves) are raised with their mothers a quarter of their life. The name sperm whale comes from the whaling industry that hunted them for oil lamps, lubricants, and candles.

The typical Sperm Whale has an overall height of 6’9”-11’ (2.06-3.35 m) and body length of 39’-62’ (12-19 m). An average Sperm Whale weighs between 38.5-65 tons (35-59 metric tons) and has a typical lifespan of 60-70 years.

Pair of top and bottom drawings of a Sperm Whale
Sperm Whale
Height:
6’9”-11’ | 2.06-3.35 m
Width:
Length:
39’-62’ | 12-19 m
Depth:
Weight:
38.5-65 tons | 35-59 metric tons
Area:
Scientific Name
Physeter macrocephalus
Lifespan
60-70 years

Drawings include:
Sperm Whale side elevation, top, bottom

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Vaquita
Dimensioned side elevation drawing of a Vaquita compared to the size of a swimming person

Vaquitas are a marine mammal that have a very particular appearance with their eyes and mouth blacked out and their upper side of the body is grey. Vaquitas are small mammals and one of the world's rarest. In 2018, researchers discovered that less than 10 vaquitas remain in the wild. Vaquitas have been on the endangered species list since the late 90s. Their environment is in the Gulf of California in Mexico, which is about 900 square miles. A big factor of their extinction is from increasingly lack of fish, squid, and crustaceans that make up their diet.

The typical Vaquita has an overall height of 12”-14” (30-36 cm) and body length of 4’-5’ (1.2-1.5 m). An average Vaquita weighs between 100-110 lb (45-50 kg) and has a typical lifespan of 20 years (average).

Pair of drawings of a Vaquita in jumping and front positions
Vaquitas are marine mammals with a very particular appearance with their eyes and mouth blacked out and their upper side of the body is grey. Vaquitas have a size of four to five feet long (1.2-1.5 m) and weigh in around 120 pounds (50 kg). Vaquitas are small mammals and one of the world's rarest.

The typical Vaquita has an overall height of 12”-14” (30-36 cm) and body length of 4’-5’ (1.2-1.5 m). An average Vaquita weighs between 100-110 lb (45-50 kg) and has a typical lifespan of 20 years (average).

Pair of drawings of a Vaquita in jumping and front positions
Vaquita
Height:
12”-14” | 30-36 cm
Width:
Length:
4’-5’ | 1.2-1.5 m
Depth:
Weight:
100-110 lb | 45-50 kg
Area:
Scientific Name
Phocoena sinus
Lifespan
20 years (average)

Drawings include:
Vaquita side elevation, jumping, front

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Blue Whale
Size comparison drawing of a Blue Whale compared to a person with measurements for overall length

Blue Whales are the largest known animal in the world; growing up to 98 feet (30 meters) and weighing up to 173 tons (157,000 kgs). They can be found living in the North Atlantic, North Pacific and parts of the Southern Hemisphere. Just like their name, Blue Whales have a long-tapered body and have a bluish-grey dorsal. Blue whales don’t have teeth, but instead have large baleen which help separate sea water from krill after they swallow. After separation, the water is shot out their blowhole when they come up from water.

The typical Blue Whale has an overall height of 13’-16’ (3.96-4.88 m) and body length of 82’-105’ (25-32 m). An average Blue Whale weighs between 55-165 tons (50-150 metric tons) and has a typical lifespan of 80-90 years.

Illustrations of Blue Whales seen in various positions from the top, front and breaching
Blue Whales are the largest known animal in the world; growing up to 98 feet (30 meters) and weighing up to 173 tons (157,000 kgs). Just like their name, Blue Whales have a long-tapered body and have a bluish-grey dorsal. Blue whales don’t have teeth, but instead have large baleen systems.

The typical Blue Whale has an overall height of 13’-16’ (3.96-4.88 m) and body length of 82’-105’ (25-32 m). An average Blue Whale weighs between 55-165 tons (50-150 metric tons) and has a typical lifespan of 80-90 years.

Illustrations of Blue Whales seen in various positions from the top, front and breaching
Blue Whale
Height:
13’-16’ | 3.96-4.88 m
Width:
Length:
82’-105’ | 25-32 m
Depth:
Weight:
55-165 tons | 50-150 metric tons
Area:
Scientific Name
Balaenoptera musculus
Lifespan
80-90 years

Drawings include:
Blue Whale side elevation, front, top, breaching

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Common Bottlenose Dolphin
Dimensioned side elevation drawing of a Common Bottlenose Dolphin measured for length with a scuba diver for scale

Common Bottlenose Dolphins are long-beaked dolphins and are also one of the most well-known water mammals on the planet. Their popular exposure in marine parks and high-trafficked beaches have contributed to their global presence. Bottlenose Dolphins can swim at an average of 15 mph (24km/h) and dive for 20 minutes but commonly hit the surface every 3 minutes. Common bottlenose dolphins hunt eels, squid, and fish and they swallow their food whole. Keeping a healthy diet, these dolphins can live up to 50 years.

The typical Bottlenose Dolphin has an overall height of 2’1”-2’11” (64-89 cm) and body length of 10’-14’ (310-430 cm). An average Bottlenose Dolphin weighs between 300-1,400 lb (136-625 kg) and has a typical lifespan of 20-30 years.

Collection of illustrations of the Common Bottlenose Dolphin drawn from the top, front and jumping positions
Common Bottlenose Dolphins are a species of long-beaked dolphins and one of the most well-known water mammals on the planet. At around around 1000 pounds and 13 feet (4 m) in length, Bottlenose Dolphins can swim at an average of 15 mph (24km/h) and dive for 20 minutes.

The typical Bottlenose Dolphin has an overall height of 2’1”-2’11” (64-89 cm) and body length of 10’-14’ (310-430 cm). An average Bottlenose Dolphin weighs between 300-1,400 lb (136-625 kg) and has a typical lifespan of 20-30 years.

Collection of illustrations of the Common Bottlenose Dolphin drawn from the top, front and jumping positions
Common Bottlenose Dolphin
Height:
2’1”-2’11” | 64-89 cm
Width:
Length:
10’-14’ | 3.1-4.3 m
Depth:
Weight:
300-1,400 lb | 136-625 kg
Area:
Scientific Name
Tursiops truncatus
Lifespan
20-30 years

Drawings include:
Common Bottlenose Dolphin side elevation, front, top, jumping

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