Animals That Start With I: List With Pictures & Interesting Facts

I present to you a compilation of captivating creatures whose names commence with the letter “I.” Among these are remarkable mammals like the indri, impala, Indian elephant, and ibex. Avian wonders include the Iceland gull and icterine warbler, while reptilian inhabitants comprise the iguana, Italian wall lizard, inland taipan, and indigo snakes. Additionally, the invertebrate realm boasts the intriguing Irukandji Jellyfish and immortal jellyfish.

This page features an extensive inventory encompassing these and numerous other enthralling animals commencing with “I,” accompanied by images and enlightening facts about each species. Below every animal, you’ll discover links that lead to additional information, pictures, and videos.

The list includes both individual species, such as the inland taipan, and animal groups, like the ibex, all denoted by their scientific names and conservation status.


Mammals of the Bovidae family, ibex are remarkable wild goats inhabiting the mountainous regions of Europe, the Middle East, and East Africa.

With impressive climbing abilities, ibex swiftly maneuver through rocky landscapes with great agility. Both male and female ibex possess curved, ridged horns, although the males’ horns are significantly longer.

Belonging to the genus Capra, ibex share their classification with other notable members such as turs, markhors, and even the familiar domestic goat found on farms worldwide.

The genus Capra is part of the larger assemblage of hoofed animals known as the subfamily Caprinae, collectively referred to as “goat-antelopes.” It’s important to note that true antelopes like gazelles, wildebeests, and impalas do not fall within this particular group.


Birds belonging to the Threskiornithidae family, known as ibises, possess slender legs and distinctive downward-curving bills. They inhabit various regions across the globe, spanning both the Old and New Worlds. Additionally, ibises are closely related to spoonbills, forming part of the Threskiornithidae bird family.

Among the diverse ibis species, the glossy ibis stands out with its radiant and shimmering feathers. This particular species boasts a remarkable range, as it can be found on every continent except Antarctica.

Iceland Gull

Officially known as Larus glaucoides, the Iceland gull is a bird belonging to the Laridae family. It can be found in various regions including the Arctic, Europe, and North America. Despite its name, this mid-sized gull does not breed in Iceland but instead chooses Greenland and northern Canada as its nesting grounds.

During winter, it embarks on a migratory journey from its Arctic home, making appearances in the United Kingdom and the northern states of the contiguous United States. With a conservation status of Least Concern, the Iceland gull continues to thrive in its natural habitats.

Icterine Warbler

Officially known as Hippolais icterina, the Icterine warbler is a bird belonging to the Acrocephalidae family. This petite avian creature undertakes an impressive migratory journey, traveling between Europe during its breeding season in the summer and tropical Africa for its winter sojourn.

With a penchant for dwelling in lush forests and woodlands, the icterine warbler demonstrates a resourceful knack for nest construction, often opting for the safety and stability of tree branches or forks. In the summer months, this resilient bird diverges from its usual insect-based diet, incorporating fruits and berries into its culinary preferences.

The name of this avian species is derived from its distinctive hue, as the term “icterine” aptly denotes a yellowish coloration.

Iguana (Green)

Scientifically known as Iguana iguana, the green iguana is a reptile belonging to the Iguanidae family. This remarkable creature can be found in the lush forests of Central and South America. While commonly referred to as the iguana, its full name sets it apart from other members of the iguana family, Iguanidae.

The green iguana shares a close kinship with the critically endangered Lesser Antillean iguana, a species inhabiting the Lesser Antilles islands in the Caribbean.

Despite its imposing size, with lengths exceeding 2 meters (6.56 feet), and its intimidating appearance, the green iguana predominantly feeds on plants. It is a species adapted for arboreal life, dwelling in trees, while also showcasing remarkable swimming abilities. When faced with a threat, it often takes refuge by diving into nearby bodies of water.

Immortal Jellyfish

Commonly known as the immortal jellyfish, the scientific name for this remarkable creature is Turritopsis dohrnii. It belongs to a group called Hydrozoa, which consists of small predatory invertebrate animals. Hydrozoa, in turn, is part of a larger category known as Cnidaria, which encompasses jellyfish, corals, and related organisms.

The immortal jellyfish can be found worldwide in saltwater environments ranging from temperate to tropical regions. However, its conservation status has not been assessed.

These fascinating creatures measure approximately 2.7 mm (0.10 in) in height and 3.3 mm (0.12 in) in diameter as adults. They have an omnivorous diet, consuming plankton, fish eggs, and brine shrimp.

What makes this jellyfish truly extraordinary is its classification as “biologically immortal.” Unless it encounters an external force that leads to its demise, such as being consumed by another organism, the immortal jellyfish has the ability to avoid death.

This remarkable feat is accomplished through a process called “transdifferentiation.” If the jellyfish is old, injured, or starving, it can revert back to its polyp state. In this form, the jellyfish can regenerate entirely new cells that are genetically identical to its previous adult form, known as the medusa.

The immortal jellyfish does face natural predators, including sea turtles, anemones, penguins, and various types of fish.


The impala is a medium-sized antelope that inhabits regions of East and southern Africa. Its reddish-brown coat fades to a slightly lighter shade on its lower body, while its undersides are white.

Male impalas possess long, ridged horns that curve outward, then inward and backward. These impressive horns can reach lengths of up to 3 feet (0.91 meters).

Predators of the impala include large felines like lions, leopards, and cheetahs. When faced with danger, the impala employs a series of energetic leaps, possibly intended to confuse potential predators. These leaps can cover distances of up to 33 feet (10 meters) and reach heights of up to 9.84 feet (3 meters).

Indian Bullfrog

Scientifically known as Hoplobatrachus tigerinus, the Indian bullfrog is an amphibian belonging to the Dicroglossidae family. It can be found in South and Southeast Asia, and has been introduced to the Maldives and Madagascar.

This impressive creature holds the title for being the largest frog species in South Asia, measuring up to 16.8 cm (6.6 inches) in length and weighing between 272 and 771 grams (0.6 – 1.7 lbs). Its substantial size, coupled with its carnivorous appetite, makes it a formidable predator. The Indian bullfrog consumes a diverse range of prey, including invertebrates, reptiles, and small birds and mammals.

Throughout most of the year, the Indian bullfrog sports a rather dull coloration consisting of various shades of olive and brownish green, although there may be slight variations among individuals. However, during the mating season, the males undergo a vibrant transformation, turning bright yellow to attract potential mates.

This amphibian species is primarily found in both natural and man-made freshwater wetlands, but it can also inhabit forested areas and coastal regions. It is well-adapted to an aquatic lifestyle.

Despite its current classification as a species of “least concern” by the International Union for Conservation of Nature (IUCN), the Indian bullfrog faces several threats. These include habitat loss due to drought and infrastructure development, as well as water pollution resulting from the use of pesticides in agriculture.

Indian Crested Porcupine

Scientifically known as Hystrix indica, the Indian crested porcupine is a mammal belonging to the Hystricidae family. It is categorized as an “Old World porcupine,” a group of animals distinguished by their spiky coats, although they are not closely related to the New World porcupines of the Erethizontidae family.

The porcupine’s spines, which are actually modified hairs, are composed of a natural substance called keratin. In the case of the Indian crested porcupine, these spines can reach lengths of up to 51 cm (20 in).

This species is primarily herbivorous, although it will occasionally consume insects as well. It is nocturnal in nature and can be found in regions of southern Asia and the Middle East. Currently, the Indian crested porcupine is considered to be of least concern in terms of conservation status.

Indian Elephant

Scientifically known as Elephas maximus indicus, the Indian elephant is a mammal belonging to the Elephantidae family. This majestic creature is primarily found in Asia, specifically in mainland regions. While there are two other subspecies, the Sri Lankan elephant and the Sumatran elephant, which inhabit Sri Lanka and Sumatra respectively, the Indian elephant is unique to mainland Asia.

Although its name suggests its connection to India, the Indian elephant can also be found in various other countries in southern Asia, including Vietnam, Thailand, and Malaysia.

Tragically, the Indian elephant is classified as an endangered species. Despite this vulnerable status, it is still hunted for its valuable tusks and meat. Additionally, the loss of its natural habitat significantly contributes to the decline in its population.

If you’re interested in learning more fascinating facts about the Indian elephant, feel free to explore the following page: Indian Elephant Facts.

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