How one man is working to save one of the world's most poisonous animals - 1

Most collectors consider the Lehmann’s poison frog to be the holy grail among poison dart frogs for its rarity.

Through selective breeding, Ivan Lozano has developed a colour 'morph' of the golden poison frog known as the orange blackfoot, shown here. Exclusive colour morphs created through captive breeding programmes can help steer hobbyists away from wild-caught frogs.

The black-legged poison frog is considered the second most poisonous frog in the world.

This blue bullseye morph of the harlequin poison frog is named for its colouring and the circular pattern on its back.

In the wild, the colourations of the harlequin poison frog can vary from one valley to the next, making it one of the species most desired by collectors.

The harlequin poison frog has more than 30 known colour variations.

It’s difficult to determine the sex of poison dart frogs from their outward appearance. To determine if a frog is male or female, breeders must wait several months until it matures. Females will start laying eggs, and males, like this harlequin poison frog, will start to call.

In the wild, the kokoe poison frog, native to the jungles of Colombia's western Chocó region, is one of the most lethal of the poison dart frogs. Indigenous people use its poison, as well as that of the golden poison frog and the black-legged poison frog, to weaponise their hunting darts.