Mark Bowler / Dusky titi monkey {Callicebus moloch} feeding on rainforest fruits, Yavari River, Amazon, Peru

Jouan & Rius / Thorny devil (Moloch horridus), Central Australia, Australia

Mitsuaki Iwago / Thorny Devil (Moloch horridus) walking across sand, Australia

Michael & Patricia Fogden / Thorny Devil (Moloch horridus) in the desert near Ayers Rock, Uluru-Kata Tjuta National Park, Australia

Gerry Ellis / Thorny Devil (Moloch horridus) overhead view, native to the Central Desert, Western Australia

Mitsuaki Iwago / Thorny Devil (Moloch horridus) on sand, Australia

Martin Willis / Thorny Devil (Moloch horridus), Tanimi Desert, Northern Territory, Australia

Yva Momatiuk & John Eastcott / Thorny Devil (Moloch horridus) displaying, Watarrka National Park, Northern Territory, Australia

Nature Production / Thorny Devil / Mountain Devil (Moloch horridus) Australia

Rod Williams / Moloch Gibbon (Hylobates moloch) juvenile female, Captive, occurs Western Java, Indonesia. Critically Endangered

Konrad Wothe / Silvery Gibbon (Hylobates moloch) portrait, native to Java, Indonesia

Steven David Miller / Thorny devil (Moloch horridus) sunning, Carnarvon, Western Australia

Jouan & Rius / Thorny Devil (Moloch horridus) Central Australia, Australia

Jouan & Rius / Thorny Devil (Moloch horridus), Central Australia, Australia

Jouan & Rius / Thorny Devil (Moloch horridus), Central Australia, Australia

Jouan & Rius / Thorny devil (Moloch horridus) Central Australia

Rod Williams / Moloch gibbon {Hylobates moloch} female, captive, from Java

Theo Allofs / Thorny Devil (Moloch horridus) portrait, Australia

Steven David Miller / Thorny devil (Moloch horridus) sandstone gorge desert, Kalbarri NP, Western Australia

JIM CLARE / Two Dusky titi monkeys {Callicebus moloch} on branch, Amazon, South America

Miles Barton / Dusky titi monkey {Callicebus moloch} young, captive, from South America

Miles Barton / Dusky titi monkey {Callicebus moloch} male carrying 4-month young on his back, captive, from South America

JIM CLARE / Dusky titi monkey (Callicebus moloch) pair with young, Amazonia, South America

Rod Williams / Dusky titi monkeys {Callicebus moloch} female with young, captive from Amazonia

Rod Williams / Moloch / Silvery gibbon {Hylobates moloch} critically endangered, captive, from West Java

Luiz Claudio Marigo / Dusky titi monkey {Callicebus moloch} Amazonas, Brazil

Luiz Claudio Marigo / Dusky titi monkey {Callicebus moloch} Amazonas, Brazil

Dave Watts / Dusky Titi monkey (Callicebus moloch) in tree,Captive

Kim Taylor / Thorny Devil (Moloch horridus). Northern Australia.

Tim Edwards / Thorny devil (Moloch lizard) (Moloch horridus). Northern Territory, Australia

Tim Edwards / Thorny Devil (Moloch lizard), Northern Territories, Australia.

Patricio Robles Gil / Thorny devil {Moloch horridus} Australia.

Michael & Patricia Fogden / Thorny Devil (Moloch horridus) portrait, Uluru-Kata Tjuta National Park, Australia

Michael & Patricia Fogden / Thorny Devil (Moloch horridus) crossing desert, Rainbow Valley National Park, Australia

Gerry Ellis / Thorny Devil (Moloch horridus) crossing cracked mud, Australia

Michael & Patricia Fogden / Thorny Devil (Moloch horridus) top view of spine, Uluru-Kata Tjuta National Park, Ayers Rock, Northern Territory, Australia

Fred Bavendam / Thorny Devil (Moloch horridus) lives in Australia's more arid regions where it feeds exclusively on ants, near Canarvon, Western Australia

Mitsuaki Iwago / Thorny Devil (Moloch horridus) on sand, Australia

Mitsuaki Iwago / Thorny Devil (Moloch horridus) portrait on sand, Australia

Steven David Miller / Thorny devil {Moloch horridus} Uluru NP, Central Australia

Steven David Miller / Thorny devil {Moloch horridus} Kalbarri NP, W Australia

Steven David Miller / Thorny devil (Moloch horridus) W. Australia.

SIMON KING / Thorny Devil (Moloch lizard) Central Australia

Tim Edwards / Thorny Devil (Moloch horridus) Australia, N.Territory Moloch Lizard.

Martin Gabriel / Thorny devil lizard {Moloch horridus} Gnaraloo, Western Australia

Steven David Miller / Thorny devil {Moloch horridus} Captive, Australia

Tim Edwards / Thorny Devil (Moloch horridus) on desert sand, Northern Territory, Australia

Rod Williams / Moloch / Silvery Gibbon (Hylobates moloch) portrait, Captive, found Western Java, Critically Endangered Species

Steven David Miller / Thorny devil {Moloch horridus} kalbarri NP, W Australia

Rod Williams / Face portrait of Moloch / Silvery gibbon {Hylobates moloch} captive, occurrs Java. Critically Endangered

Steven David Miller / Thorny devil {Moloch horridus} on desert sand, Uluru National Park, Central Australia