Discover the Factors Impacting How Long Squirrels Live!

With a passion for wildlife and years of experience observing the behavior of squirrels around the world, I have gained unique insight into the factors impacting how long squirrels live. In this blog post, I will share my knowledge on the average lifespan of wild squirrels, as well as discussing how location and genetics can influence how long do squirrels live.

Squirrels are a diverse group of tree-dwelling rodents, with around 285 species found worldwide. The average lifespan of wild squirrels is 5 to 10 years, with some individuals living even longer depending on their species, location and genetics. The European red squirrel, for example, can live up to 16 years in the wild due to its habitat’s absence of predators. On the other hand, North American gray squirrels usually only reach 3 to 6 years old due to their vulnerability to many natural threats.

How Long do Squirrels Live?

When talking about the life expectancy of squirrels, there is a lot of variation. The average lifespan of wild squirrels is typically 5 to 10 years, although some species may live longer or shorter depending on their genetics and habitat. For instance, the European red squirrel can live up to 16 years due to its lack of predators in its habitat, while North American gray squirrels usually only make it 3 to 6 years due to the many threats they face.

Still, some individuals may defy the odds and live much longer than expected. Occasionally, stories pop up about squirrels who live for decades—even over 40 years! In general, however, most squirrels don’t make it past the typical 5-10 year mark.

The Average Squirrel Life Cycle


A newborn squirrel looks like a bundle of fur with closed eyes and ears. They are noisy little critters making chirping noises that demand attention and food from adults. At birth, they weigh less than one ounce and have no hair except for what is found on their heads and feet. This changes within a few days as they begin to develop more fur all over their bodies.

At this stage, newborns rely heavily on their mothers or foster parents for food, warmth and protection until they are old enough to leave the nest and venture out into the world on their own.


At around six weeks of age, young squirrels are already able to climb small trees and venture through open spaces. These juvenile animals still rely on adults for food but become more independent in terms of finding shelter and protection from predators. At this stage, a juvenile’s life expectancy is usually still not very long — usually 1-2 years — although some lucky ones will survive beyond that.

Younger juveniles also learn how to find nuts and other sources of food that become important later on in life when looking for sources of sustenance during winter months.


Adult squirrels normally live between 5-10 years in the wild with some exceptions noted above. While being an adult allows them greater freedom than juveniles, it can also lead to increased risk since adult animals are typically larger targets for predators such as hawks, cats or coyotes.

In addition to losing life in this way older animals are also prone to diseases associated with aging such as dental problems which further shorten their lives.

Factors that Impact How Long a Squirrel Lives

Squirrels can live anywhere from five to ten years in the wild, with their lifespan greatly dependent on the species and their environment. Factors such as predators, climate, available food sources, and more can play a major role in how long any given squirrel lives.

  • Predators: Natural predators, such as hawks and foxes, can hunt down unsuspecting squirrels and drastically reduce their lifespan.
  • Climate: Squirrels thrive best in moderate temperatures; too much cold or heat can be damaging to a squirrel’s health.
  • Food Sources: Access to ample food sources are key for a squirrel’s survival. Without enough sustenance, they will die off quickly.

Common Diseases and Parasites in Squirrels

Squirrels can be prone to a variety of illnesses and parasites due to their outdoor lifestyle. Common diseases among squirrels include Lyme disease, tularemia, leptospirosis, and viral hemorrhagic fever. Parasites such as fleas, ticks, mites, and worms have also been known to affect squirrels.

Tooth Loss and Vision Loss in Squirrels

Squirrels can often suffer from the effects of tooth and vision loss as they age. While their sharp claws help them climb trees, their teeth are essential for eating and defending themselves from predators. Vision loss can also have a major impact on their ability to find food and avoid danger.

  • Tooth loss can lead to malnutrition, impacting lifespan
  • Poor vision can make it harder to spot predators or food sources
  • Proper nutrition is key in helping squirrels maintain healthy teeth and vision

Predators Who Attack Squirrels

Predators are one of the main reasons why squirrels in the wild do not live very long. Common predators include foxes, coyotes, hawks, owls, and snakes. Human activities such as deforestation and hunting can also contribute to decreased life expectancy among squirrels.

Adaptations to Living in Urban Areas

Grey squirrels can be quite resilient, with their knack for surviving in urban ecosystems where they don’t encounter many of the predators they would find in their natural habitat. This sets them apart from other animals, allowing them to enjoy a greater life-span and not have to expend as much energy searching for food.

Another factor aiding the survival of urban squirrels is the presence of gardens and common green spaces which offer plenty of nuts, edible vegetables and fruits which can supplement their diet. This allows them to avoid going out into danger while also providing them with more nutrients than wild foods.

Variations in Lifespans of Different Species

The life expectancy of different species of squirrels varies greatly depending on where they are found. For instance, red squirrels (Sciurus vulgaris) have an average lifespan of up to 16 years whereas North American grey squirrels (Sciurus carolinensis) tend to only live between 3 and 6 years in the wild.

Southern flying squirrels usually have a shorter life than most other tree-dwelling mammals, with an estimated three to five years in the wild. However, their longevity in captivity can extend up to 10 years or more! Conversely, ground-dwelling rodents such as ground squirrels typically only live for around three years while Western grey squirrels tend to live close to a decade.

Red Squirrel Lifespan

The life span of a red squirrel varies greatly depending on their environment and other factors. Studies suggest that they have an average lifespan of 5-10 years in the wild, but this can be significantly less depending on potential predators and availability of food sources. They are adept climbers and fast runners, making them more apt to survive than most other species—but ultimately, the risks associated with living in the wild can have a great impact on their lives.

Eastern Fox Squirrel Lifespan

The Eastern Fox Squirrel has an average lifespan of 6-9 years in the wild. Predators, climate, and access to food can all have a huge impact on their life expectancy. Proper habitat conservation and protection is key for helping the species survive long into the future.

Southern Flying Squirrel Lifespan

Southern flying squirrels have an average lifespan of 5-10 years in the wild. They are highly adapted to their environment and have the ability to evade predators. Some populations have been recorded living up to twelve years, demonstrating the potential for a longer life span when conditions are ideal. With an agile lifestyle, southern flying squirrels can quickly navigate their habitats and locate food sources, which help them survive for a longer period in the wild.

Eastern Grey Squirrel Lifespan

The Eastern Grey Squirrel has a lifespan of up to 11 years in the wild. It is adapted for life in urban environments, where its predators are few and food sources plentiful. Its agility and alertness help it avoid danger and survive in both rural and urban habitats.

Black Squirrel Lifespan

Black squirrels have a slightly longer life expectancy than other species of squirrels. On average, they live up to 12 years in the wild, but can survive up to 18 years with proper care. In captivity, some black squirrels have been known to live for over 20 years! This is due to their larger size and intelligence which enables them to be better adapted to avoid predators and forage for food.

Ground Squirrel Lifespan

The average lifespan of ground squirrels ranges from 2–6 years in the wild. Variables like environment, habitat quality, and genetics also affect how long they live. Predators and disease can also cut a ground squirrel’s lifespan shorter than expected. With proper food, water, and shelter, however, they can reach the higher end of the predicted range.

Squirrels have become a source of myth and legend over time. One popular myth speaks of how some species are said to be born with one eye open and the other closed. It goes on further saying that whichever eye closes first will determine how long that particular animal will live – 9 or 10 years if its left eye closes first, however, 12 or 13 if its right eye closes first.

This isn’t true as both eyes open at birth and there’s no scientific evidence backing this claim up. Another popular belief suggests that female squirrels tend to outlive male ones by two or three years – again, this has no basis in science either as both genders typically share the same life expectancy.

How Do Squirrels Live So Long?

Most animals, including squirrels, rely heavily on their ability to detect and evade predators. Squirrels are extremely quick and agile – all aided by their excellent vision which helps them spot potential threats quickly. They are also nimble climbers which often assists them when fleeing from danger.

In addition, many species also have large teeth which grow throughout their lives – helping them grind down food sources easier – as well as keep their vision sharp as they age. Wild squirrel diets typically contain many beneficial antioxidants such as mushrooms found in forests or nuts from trees; contributing even further towards prolonging their lifespans.


How long can a squirrel remember something for?

Squirrels possess remarkable acumen, including a remarkable long-term memory. They are able to recall events months or even years later, and can even recognize certain individuals they have interacted with in the past. An average squirrel’s memory span is believed to be anywhere from two weeks to six months.

What is the opinion that squirrels have of humans?

Squirrels tend to have positive feelings towards humans. They remember and recognize people they’ve seen before, and often come back if they were given treats in the past. Squirrels can become friendly with a consistent source of food, demonstrating loyalty and trust in their human friends. Many have even been known to take nuts from people’s hands!

Do squirrels recognize or recall people who have cared for them?

Squirrels are known to recognize people who feed them and can remember their human friends over a period of months or even years. It has been observed that they often return to the same person for food, leading us to believe that squirrels do indeed remember their owners.

Do squirrels have the ability to recognize humans?

Yes, squirrels have remarkable memories and can remember their human friends. They will likely recognize the same person over time and even return to them for food or other interactions.

Do squirrels retain memories of all individuals they have encountered?

Squirrels may not remember every single person they’ve encountered, but they tend to remember certain people and return to them more often. They have a remarkable capacity for forming memories, allowing them to build a mental map of the environment around them. Due to this, squirrels can recognize people who offer food, or those that are generally kind towards them.

Do squirrels have an affinity for humans?

It is difficult to say with certainty whether or not squirrels love humans, however, it is well-documented that they do cultivate relationships with human friends and seem to remember them over long periods of time. They have even been seen seeking out the same individual repeatedly. This could suggest a deep affection for their human friends.

What is the typical lifespan of a squirrel in a backyard?

Backyard squirrels typically have a lifespan of three to six years, however this may vary depending on the conditions and availability of food. Generally, if a squirrel can access consistent sources of nutrition and avoids dangerous situations, they can live up to eight to 10 years.


The key to a squirrel’s longevity is multifactorial, but there are definitely factors we can consider in order to answer the question of how long do squirrels live. Their species, location and genetics play a significant role, as well as their habitats and potential predators. With proper care, nutrition and medical attention, wild squirrels could reach an even longer lifespan than they usually do.

Knowing all of this, it comes down to understanding how the different environmental factors influence squirrel lifespans in order to better put into perspective exactly how long do squirrels live in the wild. Implementing improved management systems and protecting their natural habitats could go a long way in helping these creatures thrive for many years to come.

You may also be interested in reading: