Sunda pangolins have become the most frequently seized mammal in the illegal wildlife trade in Asia, as smugglers sell the creatures to meet culinary and medicinal demand. These gentle insectivores are now on the endangered species list.

This frog (Breviceps namaquensis) sounds like a bike horn.

The kiwi is a flightless bird found only in New Zealand. They're around the size of a chicken, and lay the largest eggs in relation to their body size of any bird in the world. Their eggs can be up to 20% of the females body weight - the equivalent of a 130 pound woman giving birth to a 26 pound baby.

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These are monkey orchids (Orchis simia). This species can be found in Europe, the Mediterranean, Russia, Asia Minor, and Iran.

Inca terns are unique and beautiful birds—slender with white-tipped gray feathers, a white curly moustache, yellow lips and a bright orange-red bill. They have a distinctive call that sounds like a high pitched laugh, which is often accompanied by bowing gestures.

Inca terns are natives of the western shoreline of South America and the islands located offshore. They are especially abundant in northern Chile and Peru in the summer. They migrate in winter, venturing to Ecuador and central Chile.

Inca terns swoop down and pluck fish from near the water’s surface. They also sometimes get scraps left behind by whales, or flock to where sea lions are eating on rocks, to steal stray bits of food.
 
A male who is interested in a female will perform aer ...

This is Croatobranchus mestrovi, a leech that lives 1.3km below sea level and doesn't want to suck your blood. The leech's milky colour and lack of eyes comes from living exclusively in the freezing groundwater and darkness of one of the deepest caves in the world, located in Croatia. They were found in shallow water attached to rocks, with their extra-wide, tentacle-surrounded mouths facing the current.

This is the spectacular Leafy Seadragon. Its dangling skin disguises the vulnerable species as floating seaweed. Like seahorses, the male Leafy Seadragon carries the eggs, which are bright pink when the female first deposits them, but turn purple or orange when they're ready to hatch after nine weeks.