Animal Names Starts With Letter: I

Animals that start with I mix island specialists, mountain climbers, and reef dwellers. Meet the nimble ibex leaping across alpine cliffs; the sprinting impala of African savannas; and Madagascar’s singing indri, a leaf-eating lemur of mist forests. Coasts and wetlands host glossy ibis and the high-latitude ivory gull, while deserts and scrub shelter sun-loving iguanas and the famously venomous inland taipan. Rivers and seas add the transparent Antarctic icefish, reef-gliding imperator angelfish, and the tiny but notorious irukandji jellyfish. Look closer and you’ll find inching inchworms, armored isopods, and elegant ichneumon wasps threading forest understories. This “I” lineup spans herbivores, carnivores, and omnivores across alpine peaks, savannas, rainforests, deserts, wetlands, coasts, and open oceans. Browse the list below for species profiles—scientific names, habitats, diets, and conservation status—and explore how intriguing and diverse the letter I can be.