TEST your sleuthing skills to spot these well-hidden creatures, from obscure owls to lurking lizards.
The pic gallery shows that these secretive animals across the globe are truly the masters of disguise.
From owls to leopards hunting their nimble prey, it's tricky to spot these animals, from the UK to the US.
There's a photo of an owl protecting her nest in a tree, taken by delivery driver, Blake Hess, 47, from Colorado, US, who had been following this family of owls for five years.
And in another mind-boggling shot, a predator lurks in a tree as it makes its way towards its meal - a tasty impala hanging in the branches of a tall tree.
Meanwhile Lizard fanatic Dave Bagshaw, 34, keeps and breeds mossy leaf-tailed geckos at his home in Macclesfield, Cheshire.
The nocturnal species have a dermal flap, a frilly skirt of skin along the length of their bodies, which combined with their ability to change colour as they sleep on branches or trees, makes the creatures a master of disguise.