Bert Willaert / School of Longfin spadefish (Platax teira), Kimbe Bay, West New Britain, Papua New Guinea

Bert Willaert / Titicaca water frog (Telmatobius culeus) swimming underwater, Lake Titicaca, Bolivia. Critically endangered species.

Bert Willaert / Titicaca water frog (Telmatobius culeus) underwater resting on the lake bed, Lake Titicaca, Bolivia. Critically endangered species.

Bert Willaert / Marbled poison dart frog (Epipedobates boulengeri) on leaf, Ecuador.

Bert Willaert / View from the top of the Ozarde waterfalls near Koyna Lake during the monsoon. Western Ghats, India, August 2010.

Bert Willaert,Bert Willaert / Portrait of a Spiny-chest Frog (Alsodes norae) endemic to Oncol Park, Chile, January

Bert Willaert / Green-backed Firecrown (Sephanoides sephanoides) nesting next to a hiking trail in Mocha Island National Reserve, Mocha Island, Chile, December

Bert Willaert,Bert Willaert / Portrait of a Darwin's Frog (Rhinoderma darwinii) Chile, Vulnerable species

Bert Willaert,Bert Willaert / Chilean slender snake (Tachymenis chilensis chilensis) Contulmo Natural Monument, Chile, December

Bert Willaert,Bert Willaert / Chile Four-eyed Frog (Pleurodema thaul) showing how it got its name - eye spots on the back of it's body, Chile, December,. Controlled conditions,

Bert Willaert / Rio Jatuntianhua Robber Frog (Pristimantis eriphus) male on a leaf. Ecuador, Vulnerable species.

Bert Willaert / Natterjack toad (Epidalea calamita / Bufo calamita) next to an empty bullet cartridge on military land, Belgium, June.

Bert Willaert / Falconer showing his juvenile Red-backed Shrike (Lanius collurio) used to catch birds of prey for domestication, with eye hood, Georgia, September 2011. No release available.

Bert Willaert / Sparrowhawk (Accipiter nisus) being caught by a falconer using a Red-backed shrike (Lanius collurio) as bait, Georgia, September 2011.

Bert Willaert / Juvenile male Caucasus viper (Daboia raddei / Vipera kaznakovi), Georgia, September.

Bert Willaert / Hunter and his dog waiting for raptors to fly over, Georgia, September 2011. No release available.

Bert Willaert / Portrait of a Marbled newt (Triturus marmoratus), Portugal, April.

Bert Willaert / Composite image of American fish species introduced to Europe: Pumpkinseed sunfish (Lepomis gibbosus, left), Brown bullhead (Ameiurus nebulosus, right) and Eastern mudminnow (Umbra pygmaea, under), ph...

Bert Willaert / Brightly Coloured Poison-Dart Frog (Oophaga sylvatica). Ecuador, South America.

Bert Willaert / Juvenile South American Common / Crested Forest Toad (Rhinella margaritifera 'complex'). Ecuador, South America.

Bert Willaert / Hognosed Pit Viper (Porthidium nasutum) coiled. Ecuador, South America.

Bert Willaert / Trivandrum / Golden Frog (Hylarana aurantiaca) looking upwards. Western Ghats, India.

Bert Willaert / Male Humayun's Wrinkled Frog (Nyctibatrachus humayuni) calling next to egg clutches on leaves. Western Ghats, India.

Bert Willaert / Banded Ground Gecko (Geckoella deccanensis) portrait. Western Ghats, India, July.

Bert Willaert / Male Alpine Newt (Ichthyosaura / Triturus alpestris) in aquatic phase. Belgium. Captive.

Bert Willaert / Pair of mating Mouse Opossums (Marmosops cf. noctivagus) hanging from prehensile tail. Ecuador,

Bert Willaert / Amplectant pair of Natterjack Toads (Epidalea / Bufo calamita) with reflection in water. Belgium, Europe, July.

Bert Willaert / Great Sundew (Drosera anglica) peduncles, with sticky droplets to ensnare insects. Belarus, Europe, July.

Bert Willaert / Aquatic Warbler (Acrocephalus paludicola) perched. Belarus, Europe, September.

Bert Willaert / Large Psammodromus (Psammodromus algirus) on sand against habitat plains. Ebro Delta, Spain.

Bert Willaert / Large Psammodromus Lizard (Psammodromus algirus) against sand. Ebro Delta, Spain.

Bert Willaert / Portrait of Balearic Green Toad (Pseudepidalea balearica / Bufo balearicus) close up, Mallorca, The Mediterranean.

Bert Willaert / Portrait of a blind snake (Ramphotyphlops depressus), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Kopstein's emo skink (Emoia jakati), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Kopstein's emo skink (Emoia jakati), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Portrait of a Bismarck Ringed python (Bothrochilus boa) tongue flicking, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Portrait of a Bismarck Ringed python (Bothrochilus boa) tongue flicking, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Giant webbed frog (Cornufer guppyi / Discodeles guppyi) on white background, controlled conditions, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Giant webbed frog (Cornufer guppyi / Discodeles guppyi), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Unidentified Planthopper insect (Euricania cf. splendida) from the family Ricaniidae, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Treasury island treefrog (Litoria thesaurensis), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Treasury island treefrog (Litoria thesaurensis), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Treasury island treefrog (Litoria thesaurensis), Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / White-lipped Tree Frog (Nyctimystes infrafrenatus / Litoria infrafrenata) in rainforest, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Cane toad (Rhinella / Bufo marinus) inflating its body in a defensive posture, Invasive species, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Cane toad (Rhinella / Bufo marinus), Invasive species, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Palm oil plantation, Willaumez Peninsula, New Britain, Papua New Guinea, December

Bert Willaert / Palm oil plantation, Willaumez Peninsula, New Britain, Papua New Guinea, December