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Armadillo: Characteristics, Diet, Facts & More [Fact Sheet]

Meet the armadillo, a unique creature with a shell so tough it looks like a walking piece of armor. This fascinating animal is well-equipped to survive the challenges of the wild and is sure to captivate your interest.

This article dives into the world of armadillos, covering everything from their physical characteristics to their behaviors, predators, and more.

The Armadillo at a Glance


Class:Mammalia (Mammals)
Family:Dasypodidae and Dasypodidae
Genera:Various subfamilies and genera
Species:Various species

Essential Information

Average Size:5 to 59 inches (12 to 150 cm)
Average Weight:3 to 120 pounds (1.3 to 54 kg)
Average Lifespan:4 to 30 years, depending on species
Geographical Range:South America and parts of North America
Conservation Status:Varies from Least Concern to Vulnerable, depending on species (IUCN Red List)

Species and Subspecies

The term “armadillo” is a common name that includes around 20 extant species across several genera. Some of the well-known species include the Nine-Banded Armadillo (Dasypus novemcinctus), the Southern Three-Banded Armadillo (Tolypeutes matacus), and the Giant Armadillo (Priodontes maximus).

These species vary significantly in terms of size, habitat preference, and even some behaviors. For example, the Giant Armadillo, true to its name, is the largest of its kind, while the Pink Fairy Armadillo (Chlamyphorus truncatus) holds the record as the smallest.

Armadillo running in grass


Armadillos are recognized by their unique carapace, a leathery armor shell that covers much of their body. Depending on the species, the color of this shell may range from pinkish to dark brown or almost black.

They have short legs but can move quite quickly when needed. Their body size ranges from 5 to 59 inches (12 to 150 cm), and they weigh between 3 to 120 pounds (1.3 to 54 kg).

There is little sexual dimorphism in armadillos, which means males and females look very similar. However, in some species, males may be slightly larger than females.

Habitat and Distribution

Armadillos are native to the Americas, with their range extending from South America to the southern parts of North America. Their preferred habitats are quite diverse and include rainforests, grasslands, and semi-deserts.

Some species, such as the Nine-Banded Armadillo, have been expanding their range northward and are now found as far north as the United States.

Armadillo in the grass


Most armadillo species are nocturnal, meaning they are most active during the night. They spend their days sleeping in burrows, which provide protection from predators and harsh weather. Armadillos are known for their ability to dig, using their sharp claws. This also serves as a means of escape when threatened.

Armadillos are generally solitary animals, but some species like the Nine-Banded Armadillo occasionally form small groups. Communication among these creatures is primarily through smell. They have a keen sense of smell, which they use to identify each other and locate food.

Diet and Feeding Behavior

Armadillos are primarily insectivores, feeding on ants, termites, beetles, and other small invertebrates. However, they can be considered omnivorous as they also eat plants, eggs, small vertebrates, and carrion when available.

They locate their prey by sound and smell, then use their sharp claws to dig them out of the ground.


The primary predators of armadillos include large carnivores such as pumas, jaguars, and alligators, and humans. For smaller species, birds of prey and large snakes can pose a threat as well.

The armadillo’s hard outer shell provides some protection, but it’s not completely predator-proof. When threatened, armadillos will often flee to a nearby burrow or, if one is not accessible, they can curl into a ball (if the species allows) or quickly dig a new burrow to escape predators.

Despite these defenses, armadillos often fall victim to traffic when they inadvertently dig burrows near roads, making vehicle strikes a common cause of death.

Armadillo closeup

Reproduction and Life Cycle

Armadillo mating season typically takes place in the summer months, but this can vary depending on the species and geographical location. After mating, armadillos have a unique reproductive strategy known as delayed implantation, where the fertilized egg does not immediately implant in the uterus, thus delaying gestation.

The gestation period for armadillos typically lasts from two to five months depending on the species. Interestingly, the Nine-banded Armadillo always gives birth to identical quadruplets, a phenomenon not seen in most mammals.

Once the offspring are born, they stay with their mother for several months until they are able to fend for themselves. They are born with soft, leathery skin that hardens within a few weeks after birth.

Conservation and Threats

Most armadillo species are considered of least concern according to the International Union for Conservation of Nature (IUCN). However, some species, like the Giant Armadillo and Pink Fairy Armadillo, are categorized as vulnerable due to habitat loss and hunting.

Threats faced by armadillos include habitat destruction due to deforestation and urbanization, and hunting for their meat and shells. In addition, as noted earlier, vehicle strikes are a common cause of armadillo mortality.

Conservation efforts for armadillos are generally focused on habitat preservation and regulation of hunting. In some regions, programs have been implemented to educate locals about the ecological importance of armadillos and discourage hunting. Meanwhile, research continues into the life habits and needs of more vulnerable species to support their recovery.

Fun Facts

  1. The name “armadillo” is Spanish for “little armored one”, fitting given their distinctive armor-like shell.
  2. The Nine-banded Armadillo always gives birth to identical quadruplets – this means all the babies come from the same egg and are identical in sex and appearance.
  3. Despite their somewhat awkward appearance, armadillos are excellent swimmers. They can hold their breath for up to six minutes and often walk along the bottom of bodies of water.
  4. Armadillos have a unique defense mechanism – when threatened, some species are capable of leaping straight up into the air to startle predators.
  5. The Giant Armadillo can have up to 100 teeth – more than any other mammal.

Frequently Asked Questions

Can armadillos roll into a ball?

Not all armadillos can roll into a ball. Only one species, the three-banded armadillo, has this ability. They do this as a form of defense against predators.

Are armadillos dangerous to humans?

Generally, armadillos pose little to no threat to humans. However, they can transmit diseases like leprosy, although it’s quite rare. They mostly want to keep to themselves and will often run, dig, or climb to escape threats rather than attack.

Can armadillos climb?

Yes, many armadillo species are skilled climbers and will scale fences and other barriers.

What do armadillos eat?

Armadillos primarily eat insects and other invertebrates, though they have been known to supplement their diet with small vertebrates, eggs, and plant matter.

How long do armadillos live?

In the wild, armadillos have a lifespan of about 7-20 years depending on the species. In captivity, they can live significantly longer with proper care.

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