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Animals That Start With “G”

Browse 26 verified species whose common names begin with the letter G.

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Galápagos Giant Tortoise

ReptiliaAnimal group

Galápagos Giant Tortoise

Chelonoidis spp.

Diet: Herbivore
Wild lifespan: Frequently more than 100 years

Galapagos Tortoise

ReptiliaAnimal group

Galapagos Tortoise

Chelonoidis niger species complex

Diet: Herbivore
Wild lifespan: Often more than 100 years; exact longevity varies

Garter Snake

ReptiliaAnimal group

Garter Snake

Thamnophis

Diet: Carnivorous, with prey varying strongly among species
Wild lifespan: Different among member species; several can live beyond a decade in protected conditions

Giant Oceanic Manta Ray

ChondrichthyesEN

Giant Oceanic Manta Ray

Mobula birostris

Diet: Filter-feeding carnivore
Wild lifespan: At least 40–45 years is plausible; exact maximum remains uncertain

Giant Otter Shrew

Giant Otter Shrew

Potamogale velox

Diet: Carnivore
Wild lifespan: Wild lifespan is not reliably established

Giant Pacific Octopus

Giant Pacific Octopus

Enteroctopus dofleini

Diet: Carnivore
Wild lifespan: Usually about 3–5 years

Giant Panda

Giant Panda

Ailuropoda melanoleuca

Diet: Herbivore specializing on bamboo despite carnivore ancestry
Wild lifespan: About 15–20 years in the wild; around 30 years in managed care

Giant Squid

Giant Squid

Architeuthis dux

Diet: Carnivore
Wild lifespan: Probably around 3–5 years, based on growth studies and comparison with related squids

Gila Monster

Gila Monster

Heloderma suspectum

Diet: Carnivore
Wild lifespan: Often 15–20 years or more

Golden Eagle

AvesStatus unavailable

Golden Eagle

Aquila chrysaetos

Diet: Carnivore
Wild lifespan: Not recorded

Golden Lancehead

Golden Lancehead

Bothrops insularis

Diet: Ambush predator specializing in migratory birds as an adult
Wild lifespan: Poorly known in the wild; likely more than 10 years for surviving adults

Golden Poison Frog

Golden Poison Frog

Phyllobates terribilis

Diet: Insectivore
Wild lifespan: Wild longevity is not well quantified; managed frogs may live more than 10 years

Goose

AvesAnimal group

Goose

Anserini

Diet: Primarily herbivorous waterfowl
Wild lifespan: Species-specific; banding records show some wild geese surviving more than 20 years

Gopher Tortoise

Gopher Tortoise

Gopherus polyphemus

Diet: Primarily herbivorous browser and grazer
Wild lifespan: Often 40–60 years, with some individuals living longer

Gray Wolf

Gray Wolf

Canis lupus

Diet: Carnivore
Wild lifespan: Often 6–8 years in the wild; some exceed 13 years

Great Hammerhead Shark

ChondrichthyesCR

Great Hammerhead Shark

Sphyrna mokarran

Diet: Carnivore
Wild lifespan: Common estimates exceed 30 years, with some individuals aged beyond 40 years

Great Plains Rat Snake

Great Plains Rat Snake

Pantherophis emoryi

Diet: Carnivorous constrictor of small vertebrates
Wild lifespan: Often 10–15 years in the wild; captive individuals may live longer

Great White Shark

ChondrichthyesVU

Great White Shark

Carcharodon carcharias

Diet: Carnivore
Wild lifespan: At least 70 years is possible, with major uncertainty among estimates

Greater Blue-ringed Octopus

Greater Blue-ringed Octopus

Hapalochlaena lunulata

Diet: Carnivore
Wild lifespan: Approximately 1.5–2 years

Greater Flamingo

Greater Flamingo

Phoenicopterus roseus

Diet: Filter-feeding omnivore
Wild lifespan: Often 30–40 years in the wild

Green Anaconda

Green Anaconda

Eunectes murinus

Diet: Carnivore
Wild lifespan: Possibly 10–20 years in the wild

Green Rat Snake

Green Rat Snake

Gonyosoma oxycephalum

Diet: Carnivorous constrictor of small vertebrates
Wild lifespan: Often 12–18 years in managed care; wild longevity is poorly documented

Green Sea Turtle

Green Sea Turtle

Chelonia mydas

Diet: Adults mainly herbivorous; juveniles more omnivorous
Wild lifespan: Likely 60–80 years or more

Green Tree Python

Green Tree Python

Morelia viridis

Diet: Arboreal ambush predator of small warm-blooded vertebrates
Wild lifespan: Wild lifespan estimated near 15 years; managed individuals may exceed 20 years

Ground Beetle

InsectaAnimal group

Ground Beetle

Carabidae

Diet: Mostly predatory or omnivorous; many species also destroy weed seeds
Wild lifespan: Adults of some species live 1–4 years; family-wide variation is large

Guinea Baboon

Guinea Baboon

Papio papio

Diet: Omnivore: fruit, seeds, leaves, roots, insects and small animals
Wild lifespan: Often around 20–30 years where conditions permit