Phyllomedusa tomopterna in rain
       
     
Ameerega shihuemoy
       
     
Dendropsophus leucophyllatus: The class clown
       
     
Hypsiboas punctatus
       
     
Phyllomedusa camba
       
     
Cochranella nola on white
       
     
Cochranella nola on black
       
     
Cochranella nola on leaf
       
     
Tiger-leg monkey tree frog
       
     
Hemiphractus scutatus
       
     
Trachycephalus macrotis
       
     
Cochranella nola on white
       
     
Osteocephalus castaneicola
       
     
Phyllomedusa tomopterna in rain
       
     
Phyllomedusa tomopterna in rain

As rain streaks past, this tiger leg monkey tree frog shows its incredible colours.

Ameerega shihuemoy
       
     
Ameerega shihuemoy

This elusive frog is new to science, having only recently been discovered in the Mascoitania rainforest, Madre de Dios. As small as a finger tip and quick-moving, these amereegas are easy to miss. However, when spotted, their distinctive electric colours are hard to forget. 

Dendropsophus leucophyllatus: The class clown
       
     
Dendropsophus leucophyllatus: The class clown

This frog shows the pattern called a "clown phase", which may sound funny, but in fact it makes the species highly vulnerable to the exotic pet trade. 

As featured on BBC Earth.

Hypsiboas punctatus
       
     
Hypsiboas punctatus

This stunning polka-dot tree frog's skin is normally a pale green - until a UV light reveals its fluorescent qualities. This transformation was only recently discovered and we still don't fully understand why the punctatus changes in this way. Perhaps it's to attract a mate or confuse predators, but it is a reminder of the transformative, adaptable abilities of nature.

Phyllomedusa camba
       
     
Phyllomedusa camba

This black-eyed monkey frog is so charismatic, with large black eyes that distinguish it from other frogs of its species.

Cochranella nola on white
       
     
Cochranella nola on white

This beautiful species of bell glass frog has evolved to have an entirely transparent lower belly, which exposes its internal organs and large ventral vein. The light even reveals the bones and tendons of its legs. 

Cochranella nola on black
       
     
Cochranella nola on black

The translucency of these bell glass frogs is a brilliant defence technique, meaning that they are almost invisible when sitting on a leaf, which you can see in the next shot.

Cochranella nola on leaf
       
     
Cochranella nola on leaf

It is thought that these bell glass frogs have evolved to be translucent so that, when sitting on a leaf and illuminated from above, they are not visible to predators below. It does blend into its leaf amazingly well.

Tiger-leg monkey tree frog
       
     
Tiger-leg monkey tree frog

Moving stealthily and stickily along a leaf.

Hemiphractus scutatus
       
     
Hemiphractus scutatus

This spix's horned tree frog has a distinctive appearance and behaviour. Rarely seen, but dwelling on the rainforest floor, this terrestrial frog is carnivorous, with a large and strong jaw. Females carry froglets in an open pouch on their backs, where they hatch and develop for up to 10 weeks

Trachycephalus macrotis
       
     
Trachycephalus macrotis

This Amazonian milk frog produces a toxic, milky substance when distressed, which some indigenous groups use as medicine. 

Cochranella nola on white
       
     
Cochranella nola on white
Osteocephalus castaneicola
       
     
Osteocephalus castaneicola

It's situations like that this I'm glad I accompany Crees scientists on night surveys: trekking through the forest with only a head torch to lead the way, on the search for reptiles and amphibians. This little froglet is new to the world and - if it survives to adulthood - will transform even further, losing its yellow 'elbow patches' and developing red stripes on the limbs.