|Sumatran Tiger Panthera tigris sumatrae, Adelaide Zoo.|
No missing it here, but in dappled shade among grass and shrubs, it can disappear as its outline vanishes.
|Coiled among foliage, this green tree snake Thrasops batesii (Limbe Botanic Gardens, Cameroon)|
would not be nearly so obvious.
|Titan Stick Insect Acrophylla titan, Nowra, New South Wales south coast.|
Among foliage or twigs this superb monster - some 20cm long - would effectively vanish.
|Brown-throated Three-toed Sloth Bradypus variegatus, Puerto Maldonado, Peru.|
Had I not zoomed in and centred on her, this animal (two actually, if you look closely at her belly)
would not be at all obvious.
|unidentified tree frog, Manu National Park, Peru.|
This a night photo, when the frog doesn't need to hide, but in the day imagine those remarkable skin patterns
against a mottled tree trunk.
|Engystomops freibergii Tambopata Research Centre, southern Peruvian Amazon.|
This one is superb!
|Lined Earless Dragon Tympanocryptis lineata, Bladensburg NP, central Queensland. |
Beautifully hidden among the ochre and rust colours of its arid environment.
|unidentified agamid, north of Maroua, northern Cameroon.|
|Common Gliding Dragon Draco volans, Gomantong Caves, Sabah.|
The matching of its pattern to the lichened tree trunk is remarkable.
In the Neotropics there are no agamids, but there are plenty of Anolis lizards (family Anolidae or Iguanidae, depending on your taxonomic preferences). Here the priority is more likely to be towards hiding in the greenery.
|Green Anole Anolis chloris, Mindo Valley, Ecuador.|
|Common Potoo chick Nyctibius griseus, Sacha Lodge, Ecuadorian Amazon.|
In this case it really isn't obvious where branch stops and chick starts!
|Dusky Woodswallows Artamus cyanopterus (family Artamidae, nothing to do with 'real' swallows), east of Canberra.|
They nearly always nest in such a situation, in tree forks or hollow stumps or spouts,
where bark-like camouflage is also important.
|Egg of Red-capped Plover Charadrius ruficapillus, Comerong Island, south coast New South Wales.|
Many ground-nesting shore birds have done away with nests altogether, as being too conspicuous.
Here the egg resembles a stone to a remarkable extent.