A firefly is a beetle that has bioluminescence.
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The whale shark is the world's largest living shark and fish.

The whale shark grows up to 14 m (46 ft) and weighs up to 15 tons, however most whale sharks grow to about 7.6 m (25 ft).  It has a mouth about 1.4 m (4 ft) wide.  The whale shark's skin is grey and decorated with pale yellow dots and stripes.  Their skin is one of the thickest in the animal kingdom and can be up to  15.24 cm (6 inches) thick.

The whale shark's diet consists of plankton, krill, small fish and squid.

Gorillas are the largest of all known living primates.  There are 2 species of gorilla, the Western Gorilla (Gorilla gorilla) and Eastern Gorilla (Gorilla beringei). Both are endangered.

Gorillas range in size from 1.65 m (5 ft 5 in) to 1.75 m (5 ft 9 in) and weigh from 140 kg (309 lbs) to 165 kg (364 lbs).  Their lifespan is around 30-50 years.

Gorillas are mainly herbivores, eating mostly fruits and plants.  Gorillas sometimes eat insects and meat.

 

The cheetah is the fastest land animal, able to reach speeds of up to 65 - 70 m.p.h.

The dragon is a mythical creature.  Several cultures around the world have stories and legends about dragons.  Some dragons such as the dragons in Chinese legends are portrayed as good, while other dragons are portrayed as evil.

The true origin of the dragon is unkown.  Some believe dragons are based on long extinct animals, snakes, large reptiles and dinosaurs.

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Beetles make up the largest group of insects.  Some of the more well-known beetles include the lady bug, dung beetle, stag beetle and firefly.