Animals
Articles about animal species, behavior and classification.
Grylloblattidae
Grylloblattidae — ice crawlers, cold-adapted wingless insects
Guadalupe bass
Guam kingfisher
Guam kingfisher (Todiramphus cinnamominus)
Guam rail
Guanaco
Guanaco (Lama guanicoe)
Guard dog
Guard dog: roles, types, training, and legal considerations
Guide dog
Guide dog (seeing-eye dog)
Guinea pig
Guineafowl
Guineafowl: African ground birds of the family Numididae
Gun dog
Gun dog (gundog): roles, types, and training
Guppy
Guppy (Poecilia reticulata): overview, biology, care and significance
Gymnopis syntrema
Gymnopis syntrema: Central American caecilian
Gymnotiformes
Gymnotiformes — Neotropical electric fishes
Gyposaurus
Gyposaurus (early Jurassic prosauropod)
Haast's eagle
Haast's eagle — the giant apex raptor of New Zealand
Haddock
Haddock (Melanogrammus aeglefinus)
Hadrosaur
Hadrosaur (Hadrosauridae) — the duck‑billed herbivorous dinosaurs
Hadrosaurus
Hadrosaurus (Hadrosaurus foulkii)
Haflinger
Hagfish
Halibut
Halibut: Atlantic and Pacific flatfish — biology, fisheries, and uses
Hallopus
Hallopus — a small prehistoric crocodylomorph once misidentified as a dinosaur
Hallucigenia
Hallucigenia — Cambrian lobopodian genus
Halteres
Hamadryas baboon
Hamadryas baboon (Papio hamadryas): appearance, behavior, and significance
Hamish McHamish
Hammerhead shark
A concise overview of hammerhead sharks: their distinctive cephalofoil, taxonomy, habitat, behavior, conservation issues, and notable biological adaptations.
Hamster
Harbor seal
Harbor seal (Phoca vitulina): appearance, range, behavior and conservation
Hare
Harlequin duck
Harp seal
Harp seal (Pagophilus groenlandicus)
Harpy eagle
Harpy eagle (Harpia harpyja)
Harrier
Harrier (bird): low-flying hawks of open country
Hawk
Hazel dormouse
Hazel dormouse (Muscardinus avellanarius)
Hearing dog
Hearing dog: assistance animals for the deaf and hard of hearing
Heart urchin
Heart urchin (Spatangoida)
Hectocotylus
Hectocotylus — the specialized reproductive arm of cephalopods
Hedgehog
Hedylidae
Helix (gastropod)
Helix (genus of air-breathing land snails)
Helix pomatia
Helmeted honeyeater
Helmeted honeyeater (Lichenostomus melanops cassidix)
Hemiphractidae
Hemiphractidae — marsupial and back‑brooding frogs
Herbivore
Herbivore (plant-eating animal)
Herd
Herd (collective group of animals)