Alex Mustard / Small hairy octopus (Octopus sp. currently undescribed), one of the smallest octopus species, that is camouflaged by a hair-like covering on its body. Ambon Bay, Ambon, Maluku Archipelago, Indonesia....

Roy Mangersnes / Skywalker hoolock gibbon, (Hoolock tianxing) male, Xiangbai Mountains, Yunnan, China.

Roy Mangersnes / Skywalker hoolock gibbon, (Hoolock tianxing) female, Xiangbai mountains, Yunnan, China.

Roy Mangersnes / Skywalker hoolock gibbon, (Hoolock tianxing) young male, Xiangbai mountains, Yunnan, China.

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) portrait, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra is with...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) mother with baby, Batang Toru, North Sumatra, Indonesia. This new species of orangutan, Pongo tapanuliensis, has been identified and is limited to this small a...

Andrew Walmsley / Batang Toru forests, North Sumatra, Indonesia. This forest is home to a newly identified species of orangutan, the Tapanuli Orangutan (Pongo tapanuliensis) with a population of about 800 individuals.

Andrew Walmsley / Batang Toru forests, North Sumatra, Indonesia. This forest is home to a newly identified species of orangutan, the Tapanuli Orangutan (Pongo tapanuliensis) with a population of about 800 individuals.

Andrew Walmsley / Batang Toru forests in mist, with sun dog, North Sumatra, Indonesia. This forest is home to a newly identified species of orangutan, the Tapanuli Orangutan (Pongo tapanuliensis) with a population of...

Andrew Walmsley / Batang Toru forests, North Sumatra, Indonesia. This forest is home to a newly identified species of orangutan, the Tapanuli Orangutan (Pongo tapanuliensis) with a population of about 800 individuals.

Andrew Walmsley / Tapanuli orangutan (Pongo tapanuliensis) portrait, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra is with a...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) female with baby, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra i...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) portrait, baby 'Bitang' age two years, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang To...

Andrew Walmsley / Batang Toru forests, North Sumatra, Indonesia. This forest is home to a newly identified species of orangutan, the Tapanuli Orangutan (Pongo tapanuliensis) with a population of about 800 individuals.

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) portrait of male, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) portrait of male, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) male, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra is with a po...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) portrait of male, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra i...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) male feeding on leaf, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumat...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) portrait of male 'Togos', Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) mother and baby, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra is...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) mother with baby feeding on fruit, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests i...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) female with baby, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra i...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) baby swinging from branch, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) baby hanging on to mother, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) baby hanging on to mother, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra is with a populati...

Andrew Walmsley / Tapanuli Orangutan (Pongo tapanuliensis) feeding on leaf, Batang Toru, North Sumatra, Indonesia. This is a newly identified species of orangutan, limited to the Batang Toru forests in North Sumatra i...

Roy Mangersnes / Olinguito (Bassaricyon neblina) in a tree at night, recently discovered species. Near Mindo, Tandayapa Valley, Ecuador, April 2014.

Roy Mangersnes / Olinguito (Bassaricyon neblina) in a tree at night, recently discovered species. Near Mindo, Tandayapa Valley, Ecuador, April 2014.

Roy Mangersnes / Olinguito (Bassaricyon neblina) in a tree at night, recently discovered species. Near Mindo, Tandayapa Valley, Ecuador, April 2014.

Roy Mangersnes / Olinguito (Bassaricyon neblina) in a tree at night, recently discovered species. Near Mindo, Tandayapa Valley, Ecuador, April 2014.

Roy Mangersnes / Olinguito (Bassaricyon neblina) in a tree at night, recently discovered species. Near Mindo, Tandayapa Valley, Ecuador, April 2014.

Piotr Naskrecki / Atewa Hooded Spider (Ricinoides atewa), a recently discovered species, Ghana

Bernard Walton / Diana tarsier (Tarsius dentatus / dianae). A recently discovered species in 1988, endemic to Sulawesi, vulnerable

Joel Sartore / Photo Ark / Limon harlequin toads (Atelopus sp. nov) pair in amplexus, portrait, Centro Jambatu, Quito, Ecuador. These two individuals are both spumarius complex. Captive. Critically endangered.

Joel Sartore / Photo Ark / Chinambi harlequin frog (Atelopus sp. nov. (Chinambi)) portrait, Centro Jambatu, Quito, Ecuador. Captive.

Joel Sartore / Photo Ark / Limon harlequin toads (Atelopus sp. nov) pair in amplexus, Centro Jambatu, Quito, Ecuador. These two individuals are both spumarius complex. Captive. Critically endangered.

Joel Sartore / Photo Ark / Lesser siren salamander (Siren cf. intermedia), originally from a tributary of the Choctawhatchee River in Florida. This is an undescribed species and is new to science. Captive.

Joel Sartore / Photo Ark / Lesser siren salamander (Siren cf. intermedia), originally from a tributary of the Choctawhatchee River in Florida. This is an undescribed species and is new to science. Captive.

David Hall / Chambered nautilus (Nautilus vanuatuensis), a recently described species, in shallow water at night, Sakao, Vanuatu, Pacific Ocean.

David Hall / Chambered nautilus (Nautilus vanuatuensis), a recently described species, in shallow water at night, Sakao, Vanuatu, Pacific Ocean.

David Hall / Chambered nautilus (Nautilus vanuatuensis), a recently described species, in shallow water at night, Sakao, Vanuatu, Pacific Ocean. November, 1991.

Lucas Bustamante / Mashpi glassfrog (Hyalinobatrachium mashpi) resting on leaf. Captive, occurs in Ecuador.

Lucas Bustamante / Mashpi glassfrog (Hyalinobatrachium mashpi) resting on leaf at night. Captive, occurs in Ecuador.

Lucas Bustamante / Mashpi glassfrog (Hyalinobatrachium mashpi) underside, internal organs visible. Captive, occurs in Ecuador.

Bruce Thomson / Broad-nosed bat (Scotorepens sp. Parnaby) on tree trunk, undescribed species restricted to small area on border of New South Wales in East Coast Eucalypt (Myrtaceae) forest, Stanthorpe, Queensland, Au...

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) on white background. Critically endangered species, first described, 2005.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) on white background. Critically endangered species, first described, 2005.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) on white background. Critically endangered species, first described, 2005.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) on white background. Critically endangered species, first described, 2005.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi), captive breeding, Barcelona, Spain. Critically endangered species.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi), controlled conditions. From Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first described, 2005.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) habitat, Montseny Natural Park, Barcelona, Spain, Europe.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first described, 2005.

Inaki Relanzon / Scientist Felix Amat, who discovered the Montseny brook newt (Calotriton arnoldi) with newt in tray, Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first described,...

Inaki Relanzon / Scientist Felix Amat who discovered the Montseny brook newt (Calotriton arnoldi) holding a newt in gloved hands. Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, firs...

Inaki Relanzon / Scientist Felix Amat who discovered the Montseny brook newt (Calotriton arnoldi). Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first described, 2005.

Inaki Relanzon / Ranger working on surveying for Montseny brook newt (Calotriton arnoldi), Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first described, 2005.

Inaki Relanzon / Ranger surveying habitat of Montseny brook newt (Calotriton arnoldi), Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first described, 2005.

Inaki Relanzon / Ranger working on the disinfecting boots for biological safety of Montseny brook newt (Calotriton arnoldi),Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species, first desc...

Inaki Relanzon / Girl looking at Montseny brook newt (Calotriton arnoldi), at Zoo de Barcelona. Critically endangered species, first described, 2005.

Inaki Relanzon / Montseny brook newt (Calotriton arnoldi) Montseny Natural Park, Barcelona, Catalonia, Spain. Critically endangered species.

Morley Read / An undescribed species of Harlequin Toad known provisionally as Atelpus condor. Found at a remote location on the slopes of a Tepuy above Rio Nangaritza, Cordillera del Condor, Ecuador, March 2018. (N...

Morley Read / Harlequin frog (Atelopus sp) on moss, an undescribed species (Atelopus aff. longirostris). Near Chinambi, Carchi Province, Ecuador. December.

Morley Read / Los Cedros rain frog (Pristimantis cedros), described in 2015, recorded only within Los Cedros Biological Reserve, Imbabura Province, Ecuador.

Morley Read / Mutable rainfrog (Pristimantis mutabilis). This recently described species is able to change its skin morphology from smooth to tuberculate. In montane rainforest at 2,000m elevation, Cordillera del T...

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed gecko (Saltuarius eximius)on tree trunk in patch of rainforest. Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / Leaf-tailed Gecko (Saltuarius eximius) new species, blends in perfectly on a boulder. Cape Melville Range, Cape Melville National Park, Cape York Peninsula, Queensland, Australia.

Tim Laman / New species of Leaf-tailed Gecko (Saltuarius eximius) sitting on a tree trunk in the patches of rainforest on the top of the boulder fields of the Cape Melville Range. Cape Melville National Park, Ca...

Tim Laman / New species of Leaf-tailed Gecko (Saltuarius eximius) on a tree trunk in the patches of rainforest on the top of the boulder fields of the Cape Melville Range, Cape Melville National Park, Cape York P...

Tim Laman / A new species of Leaf-tailed gecko (Saltuarius eximius) sits on a tree trunk in the patches of rainforest on the top of the boulder fields of the Cape Melville Range. Cape Melville National Park, Cape...

Luis Quinta / A new species of cave Pseudoscorpion (Titanobochica magna) Algarve region, Portugal. The largest cave Pseudoscorpion in Europe and quite possibly of it's kind in the world. These creature are only...

Derek Galon / Newly discovered bush cricket - Nesonotus caeruloglobus. It is endemic to Dominica, West Indies. September 2019