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Biggest marsupial -

The red kangaroo holds the title of the world's largest marsupial.

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Red kangaroo -

These adorable creatures can reach a length of about 5.3 ft (1.6 m), with their tail alone being up to 3.6 ft (1.1 m) long. They also weigh about 200 lbs (90 kg).

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Biggest lizard -

The Komodo dragon holds the title of Earth's biggest lizard.

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Komodo dragon -

These prehistoric creatures can grow up to 10 ft (3 m) long and weigh around 200 lbs (90 kg).

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Biggest bird -

The heaviest bird on Earth is the ostrich, while the largest flying bird is the wandering albatross, which is known for its huge wingspan.

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Wandering albatross -

The wingspan of this bird is about 11.5 ft (3.5 m).

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Biggest butterfly -

The Queen Alexandra's birdwing holds the title of the largest butterfly on Earth.

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Queen Alexandra's birdwing -

The Queen Alexandra birdwing is a species of butterfly native to Papua New Guinea with a wingspan of 11 to 12 inches (28 to 31 cm).

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Biggest animal on Earth -

The blue whale is the largest animal on earth in terms of size, and no other creature comes close to its magnitude.

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Blue whale -

This colossal creature can reach up to a height of 100 ft (30 m) and weigh an astounding 200 tons.

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Biggest primate -

When it comes to primates, the largest of them all is the eastern gorilla.

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Eastern gorilla -

These animals can reach a height of 6.2 ft (1.9 m) and weigh about 450 lbs (204 kg).

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Biggest rodent -

The capybara is indeed the largest rodent on Earth.

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Capybara -

These creatures are native to South America and grow up to 2 ft (60 cm) in size.

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Biggest bat -

The giant golden-capped flying fox, also called the giant golden-crowned flying fox, holds the title of the largest bat in the world.

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Fruit bat -

Native to the Philippines, these bats have a wingspan of up to 5.5 ft (1.7 m) in length. Despite their size, they are relatively light, weighing about 2.6 lbs (1.2 kg).

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Biggest snake -

The reticulated python holds the record for the longest snake.

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Reticulated python -

The reticulated python, which is native to Southeast Asia, Indonesia, and the Philippines, often grows to over 20 ft (6 m).

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Biggest fish -

The whale shark ranks as the largest fish that lives in our waters.

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Whale shark -

These creatures can grow quite large, up to 40 ft (12 m) long and weighing 20.6 tons.

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Biggest jellyfish -

The lion's mane jellyfish is the largest of its kind.

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Lion's mane jellyfish -

The diameter of these creatures can be up to 6.6 ft (2 m), with tentacles growing up to 49 ft (15 m)!

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Biggest arthropod -

The largest arthropod on Earth is the Japanese spider crab.

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Japanese spider crab -

This arthropod has legs that can reach a length of 12 ft (3.6 m) and can weigh up to 41 lbs (18.5 kg).

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Biggest bivalve -

The giant clam, scientifically known as Tridacna gigas, holds the title of the largest bivalve mollusk in our oceans.

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Giant clam -

The giant clam is an impressive creature: it grows up to 4 ft (1.2 m) long and weighs over 500 lbs (227 kg). That's one huge clam! 

Sources: (BBC) (USA Today) (National Geographic)

See also: Popular animal myths that you probably still believe

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