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Animals That Start With “R”

Browse 11 verified species whose common names begin with the letter R.

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Rattlesnake

ReptiliaAnimal group

Rattlesnake

Crotalus and Sistrurus

Diet: Carnivorous ambush predator
Wild lifespan: Often 10–25 years in the wild depending on species; some can exceed 20 years

Red Fox

Red Fox

Vulpes vulpes

Diet: Omnivore
Wild lifespan: Often only a few years in the wild; exceptional wild individuals can live much longer

Red Lionfish

ActinopterygiiLC

Red Lionfish

Pterois volitans

Diet: Generalist carnivorous predator
Wild lifespan: Up to about 10 years reported in the wild

Red Panda

Red Panda

Ailurus fulgens

Diet: Bamboo specialist with an opportunistic omnivorous diet
Wild lifespan: Commonly 8–10 years in the wild; individuals in managed care can exceed 20 years

Red-bellied Piranha

ActinopterygiiLC

Red-bellied Piranha

Pygocentrus nattereri

Diet: Omnivore
Wild lifespan: Often 10 years or more; well-maintained captive individuals can live longer

Red-Eyed Crocodile Skink

Red-Eyed Crocodile Skink

Tribolonotus gracilis

Diet: Small terrestrial invertebrate predator
Wild lifespan: Wild lifespan is uncertain; managed individuals may live around a decade or longer

Red-Eyed Tree Frog

Red-Eyed Tree Frog

Agalychnis callidryas

Diet: Nocturnal insectivore
Wild lifespan: Wild longevity is poorly measured; managed individuals may live several years

Red-legged Grasshopper

Red-legged Grasshopper

Melanoplus femurrubrum

Diet: Generalist herbivore with a preference for broad-leaved plants
Wild lifespan: Usually one annual generation; adults die with hard frost

Regal Jumping Spider

Regal Jumping Spider

Phidippus regius

Diet: Insectivore
Wild lifespan: Usually about 1–2 years

Rhinoceros Beetle

InsectaAnimal group

Rhinoceros Beetle

Dynastinae

Diet: Species-dependent herbivore, sap feeder or decomposer
Wild lifespan: From months to several years including the larval period, depending on species

Ring-Tailed Lemur

Ring-Tailed Lemur

Lemur catta

Diet: Opportunistic omnivore dominated by plant foods
Wild lifespan: Wild median or typical survival is often around 15–16 years, with substantial individual variation