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Animals That Start With “I”

Browse 6 verified species whose common names begin with the letter I.

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Iguana

ReptiliaAnimal group

Iguana

Iguana

Diet: Primarily herbivorous
Wild lifespan: Species-specific; green iguanas may live more than a decade

Impala

Impala

Aepyceros melampus

Diet: Herbivore; mixed grazer and browser
Wild lifespan: Commonly about 12–15 years in the wild

Indian Runner Duck

Indian Runner Duck

Anas platyrhynchos domesticus

Diet: Omnivore
Wild lifespan: Often 8–12 years with good care

Inland Taipan

Inland Taipan

Oxyuranus microlepidotus

Diet: Specialized mammal predator
Wild lifespan: Wild longevity is uncertain; captive taipans may live well over a decade

Inland Taipan

Inland Taipan

Oxyuranus microlepidotus

Diet: Carnivore; specialist predator of small mammals
Wild lifespan: Not well established in the wild; captive individuals may live for more than a decade

Isopod

MalacostracaAnimal group

Isopod

Isopoda

Diet: Detritivores, scavengers, grazers, predators or parasites depending on lineage
Wild lifespan: Depends on the individual species and environment