I used the following websites to get names of unusual animals:
10 Weird Animals (And Where To See Them) and
An Epic Guide to 70 Cool & Weird Animals Around the World
There are 248 listings for capybaras, 34 for fossas and 71 for maned wolves, 180 for axolotls , 70 for African clawed frogs, 29 for eastern long-necked turtles, 77 for mata-matas, 58 for European legless lizards, 71 for Tonkin bug-eyed frogs, 138 for marabous, 86 for Victoria crowned pigeons, 47 for markhors, 141 for coypus, 41 for naked mole rats and lots for Bactrian camels.
Askaniya: Saiga
Auxois: Chinese water deer
Barcelona Aquarium: Weedy seadragon
Berlin Tierpark: Chinese water deer, Sulawesi babirusa
Berlin Zoo: Chinese giant salamander, Gharial, Chinese water deer, Sulawesi babirusa
Biotropica: Gharial
Branféré: Chinese water deer
Brest: Warty frogfish
Bristol: Aye-aye
Cala Gonone: Warty frogfish
Cheminitz: Chinese giant salamander
Chester: Aye-aye, Sulawesi babirusa
Clères: Chinese water deer
Cologne: Chinese giant salamander
Cottbus: Baird's tapir
Duisburg: Chinese giant salamander
Eskilstrup: Gharial
Frankfurt: Aye-aye, Warty frogfish
Haute-Touche: Chinese water deer
Houghton Hall: Chinese water deer
Jersey: Aye-aye
Jihlava: Sulawesi babirusa
Karlsruhe Museum: Chinese giant salamander
Kronberg: Sulawesi babirusa
Krokodyli: Gharial
La Ferme aux Crocodiles: Gharial
Las Palmas: Weedy seadragon
Leipzig: Chinese pangolin
Lisbon Oceanario: Weedy seadragon
Lisieux: Chinese water deer, Sulawesi babirusa
London: Aye-aye, Chinese giant salamander, Sulawesi babirusa
Madrid Faunia: Chinese giant salamander
Malmo: Warty frogfish
Marne la Vallee: Weedy seadragon
Moscow: Chinese giant salamander
Moscow (Moskvarium): Weedy seadragon
Munich: Warty frogfish
Munster: Warty frogfish
Nizhniy Novgorod: Chinese giant salamander
Nuremberg: Sulawesi babirusa, Warty frogfish
Ostrava: Warty frogfish
Pairi Daiza: Chinese giant salamander, Gharial, Shoebill
Palma: Weedy seadragon
Paris (Aquarium de la Porte Dorée): Warty frogfish
Prague: Chinese giant salamander, Gharial, Shoebill, Horned screamer
Pula: Weedy seadragon
Rostock: Warty frogfish
Sainte Croix: Chinese water deer
Salzburg (Haus der Natur): Warty frogfish
Scarborough: Weedy seadragon
Stuttgart: Sulawesi babirusa, Warty frogfish
Valencia: Weedy seadragon
Villiers-en-bois: Chinese water deer
Vienna (Haus des Meeres): Warty frogfish
Walsrode: Long-wattled umbrellabird, Shoebill, Horned screamer
Watatunga: Chinese water deer
Weymouth: Weedy seadragon
Whipsnade: Chinese water deer
Woburn Safari: Chinese water deer
Wuppertal: Baird's tapir, Sulawesi babirusa
Zlin: Horned screamer
