An amazing ruby-topaz hummingbird (Chrysolampis mosquitus) from Colombia. (Photo luisfdo.agudelo)

Arctic hares can run at speeds of 40 miles per hour! (Photo Adrian Imms)

The Waxy Monkey Leaf Frog moves by walking rather than hopping, which is the reason for the 'monkey' in their name. (Photo thecritterdepot)

Lyropteryx apollonia from the Amazon rainforest. (Photo Kashi Kashif)

The awesome looking Andros Island iguana is an endangered species. Only 3,500 individuals are left on the island. (Photos iguanafoundation.org)

The masked lapwing has large wattles on its beak! (Photo Dennis Church)

A rare male ribbon seal. (Photo NOAA)

The Wallachian sheep.

The colourful scooter blenny. (Photo carly 88)

The glossy ibis is a widespread species found in most warm regions of the world. (Photo Jim Block)

The northern blue tongue skink is a lizard with a characteristically blue tongue. They can be found in New Guinea & Australia. (Photos Doug Beckers)

The Andean mountain cat (Leopardus jacobita) is an endangered wild cat from the high Andes. Less than 2500 inidividuals remain. (Photo almonature)

The tomato frog of Madagascar puffs up & secretes a thick substance when predators try to eat it. (Photo Maroansetra)

An amphipod from the Antarctic. (Photo Keith Martin-Smith)

The sword-billed hummingbird is the only bird with a beak longer than its body! (Photo Luis Alcivar)

The binturong or bearcat is a vulnerable species from south & Southeast Asia. (Photo Gunther Deichmann)

The Emei moustache toad grows spikes on its snout to use as weapons in breeding season & then sheds them afterwards. (Photos Cameron M Hudson)

The canyon bat (Parastrellus hesperus) is the smallest bat in the USA, with a wingspan of just 20cm! (Photo @SanDiegoRefuges)

The peppermint moth. (Photo Matthew Kritzer)

The boat-billed heron from Mexico. (Photo Alejandro Gonzalez)