Originally published in Australia and New Zealand as The Illustrated Encyclopaedia of Ugly Animals by Hachette Australia, an imprint of Hachette Australia Pty Limited, in 2019.

Includes bibliographical references.

Introduction -- Amazon river dolphin -- American manatee -- Antarctic scale worm -- Asian sheepshead wrasse -- Atlantic mudskipper -- Atlantic trumpetfish -- Australian brush-turkey -- Australian ghost shark -- Australian white ibis -- Aye-aye -- Bald-headed uakari -- Black musselcracker -- Black rain frog -- Black snub-nosed monkey -- Blobfish -- Bornean orangutan -- California condor -- Chinese softshell turtle -- Creatonotos gangis -- Fangtooth moray -- Gelada baboon -- Giant anteater -- Goblin shark -- Greater sage grouse -- Hairless Chinese crested dog -- Hammer-headed fruit bat -- Hellbender --Helmeted guineafowl -- Helmeted hornbill -- Humpback anglerfish -- King vulture -- Largetooth sawfish -- Malayan tapir -- Maleo -- Mandrill -- Marabou stork -- Mexican mole lizard -- Monkey slug caterpillar -- Naked mole rat -- North Sulawesi babirusa -- Northern bald ibis -- Northern ground-hornbill -- Ocean sunfish -- Proboscis monkey -- Purple pig-nosed frog -- Red-lipped batfish -- Reticulate stargazer -- Saiga antelope -- Santiago giant tortoise -- Sarcastic fringehead -- Sea lamprey -- Southern cassowary -- Southern elephant seal -- Star-nosed mole -- Surinam toad -- Tardigrade -- Turkey vulture -- Vulturine guinefowl -- Wild turkey.

Ages 8 to 14 The Experiment.

Grades 4-6 The Experiment.