Learned Behavior in Animals

Definition of learned behavior in animals

The definition in both human and non-human animals of learned behaviors are behaviors acquired through experiences in life and are not genetically inherited. These behaviors are often learned through a process of trial and error and by observing other individuals engaged in the behavior. These behaviors are then saved as memories and can be repeated in the future. Since learned behaviors are only acquired through life experiences, they are considered to be extrinsic, since individuals in isolation from other individuals and life experiences would not develop these learned behaviors.

Types of learned behavior in animals

Types of learning include habituation, classical conditioning, operant conditioning, imprinting, and insight learning. One of the simplest ways that animals learn is through habituation, where animals decrease the frequency of a behavior in response to a repeated stimulus.

Let's talk about each of them in more detail.

Classical conditioning

Classical conditioning, also known as Pavlovian conditioning, involves a learned behavior being the same as different unrelated stimuli due to conditioning.

Classical conditioning involves unconditioned and conditioned stimuli and their responses. In Pavlov’s experiment, the unconditioned stimulus and response were the smell of food and salivation, while the conditioned stimulus and response were the ringing bell and salivation.

Habituation

When an organism experiences repeated exposure to the same stimuli, it may become habituated to it and ceases responding in the same way it had responded previously. This is known as habituation.

Most wild animals are naturally wary and fearsome of humans. Still, they may lose this fear and become habituated through any number of mechanisms, one of the most frequent and destructive being the direct feeding of wild animals by humans.

Imprinting

Imprinting is a learned behavior that occurs at specific points in an organism’s lifespan, most frequently at birth. There are generally three types of imprinting: filial, sexual, and limbic.

Filial imprinting

Filial imprinting occurs at birth between a newborn and its mother, father, and/or siblings. This type of imprinting behavior is vital to an infant organism’s chances of survival and allows them to recognize members of their own species.

Sexual imprinting

Sexual imprinting allows human and non-human animals to develop sexual attractions to specific mates, depending on which behavioral and physical traits it finds desirable. These preferences develop early in an organism’s lifespan, while still young.

In humans, reverse sexual imprinting has been described, where individuals are NOT attracted to individuals that have similar characteristics to those they had close and frequent contact with as children before the age of six (such as siblings). This is known as the Westermarck effect.

Limbic imprinting

Limbic imprinting involves experiences during the pre-, peri- and post-natal periods having a permanent impact on the limbic systems (also known as the paleomammalian cortex of the brain). Behaviors, emotions, and memories are highly dependent on the limbic system, so imprints here would greatly impact an organism. Despite occurring very early in life, limbic imprinting may greatly impact the individual for the rest of his or her life.

Insight

Insight is a very complex form of learned behavior in animals. It is believed to be restricted to animals with higher cognitive abilities, such as humans, non-human Great Apes, cetaceans, and elephants. Insight requires problem-solving skills and the comprehension of cause and effect.

Operant conditioning

Operant conditioning, also known as instrumental conditioning, involves punishments and rewards for specific actions, resulting in a specific, conditioned response. This is often accomplished through positive and negative reinforcement, as well as positive and negative punishment.

• Positive reinforcement and punishment involve additions, such as food or shocks,

• while negative reinforcement and punishment involve removal, such as stopping shocks or removing food.

List of learned behaviors in animals

The following is a list of common learned behaviors in animals:

• Communication

• Danger identification and avoidance (e.g., predators or poisonous/venomous organisms)

• Prey identification

• Sexual selection

• Species identification

• Tool use

• Environmental manipulation

• And many more!

Learned Behavior Examples in Animals

Observing other animals and living experiences lead to learned behavior. A common example of a learned behavior in animals are ducklings watching their mothers to figure out how to avoid danger and what is safe to eat. Below are other two examples of learned behavior in animals, one involving crows and the other regarding tool use in gorillas.

Planning in crows

The New Caledonian crow (Corvus moneduloides) is a species of crow endemic to the islands of Grande Terre and Mare in New Caledonia. These crows have learned how to use complex tools in many ways, including the ability to anticipate cause and effect, thus suggesting insight learning.

One such learned behavior observed was the ability to displace water to obtain food. They accomplished this by dropping stones into water containers with food on the surface, thus causing the water level to rise and rendering the food attainable. Multiple other experiments were conducted and repeated, some using barriers and new circumstances, yet the crows almost always seemed to adapt and change their behavior in response. This suggests that these crows have high cognitive abilities, including the ability to plan ahead, previously believed to be restricted to only a small number of mammalian species.

Tool use in gorillas

Western gorillas (Gorilla gorilla) have been observed in the Republic of Congo’s Nouabale-Ndoki National Park using tree trunks as poles to determine water depth and aid in movement/structural support while wading through swamps and other waterways. These gorillas used the trunks in ways that were virtually identical to the way humans use poles while navigating waterways on foot. Western gorillas are one of multiple species of non-human primate that have been observed using tools of varying complexity, giving researchers insight into what the behavior of early humans may have been like.

Let’s compare innate behaviors to learned behaviors in animals

Observation, or watching other animals, is one of the most common ways animals learn. It is possible to learn by observation without any external reinforcement (through observing and mimicking). There are two types of animal behavior recognized: innate and learned.

In addition to learned behaviors, there are innate behaviors. Unlike learned behaviors, innate behaviors are inherited genetically from parent to offspring and are present in the organism from birth. Innate behaviors are automatic in response to specific stimuli, even if that stimulus had never been encountered previously.

On the other hand, learned behaviors are not passed down genetically (though they may be passed down behaviorally after birth) and are not automatic. Learned behaviors often require trial and error and always require life experience. Hence, they are not present before or at birth.