How Do Lobsters Communicate? Secrets of Their Underwater Talk

Believe it or not, lobsters communicate with one another by peeing. While other fish relay messages through motions and gestures, these creatures use urine as a way to chemical signal one another.

I know that now you have a lot of questions, so let’s dive deeper into how exactly lobsters pee and how it works to communicate.

How Do Lobsters Communicate?

Every creature is unique in its own way, and this includes how they communicate with one another. You may ask, “Do lobsters have a voice?” No, they don’t. So, lobsters follow a unique technique to communicate.

The lobster’s urine can relay a variety of messages about things such as territory, mood, and even mating opportunities. In addition, the urine can also contain pheromones which act as scents to attract potential mates.

How Do Lobsters Pee to Communicate?

Unless you’re familiar with how lobsters urinate, their anatomy may come as a surprise to you. Each lobster has two bladders placed on each side of its head. These animals relieve themselves through two slits located just under each eye. And surprisingly, lobsters use these slits to eject their urine.

The lobster communicates through urine; once it urinates, the chemicals in its urine enter another lobster’s smell system and relay a message. Because of this ingestion method, they are able to interpret the odor of other lobsters’ pee as social data regarding their place in the hierarchy. The stream of pee that exits a male or female reproductive organs can reveal its sexual orientation.

Why Do Lobsters Communicate Through Pee?

There are many theories as to why pee is the main form of communication for lobsters. One theory suggests that during their evolutionary process, lobsters did not have access to a lot of sounds or visual cues in their deep ocean habitat. Thus, they relied on chemical signals through urine to communicate with one another.

See also  Are There Lobsters in The Pacific Ocean?

Another theory is that lobsters can communicate better with one another due to the presence of molecules called pheromones, which are introduced into the lobsters’ urine. They send mixed signals when they shoot urine at their surroundings.


Peeing also has an astonishing ability that can be projected up to the length of seven lobsters! The majority of communication-peeing is associated with mating.

Lobsters commonly don’t enjoy social interaction and tend to stay solitary creatures. Depending on the victor, the lobster’s urine will inherit a different scent when combatting other lobsters.

Also See: Are Lobsters Arachnids? [No, Here’s Why]

How Do Lobsters Communicate for Mating?

During mating season, lobsters send chemical signals to attract potential mates through their urine. Due to chemical changes, female lobsters are more attracted to the winning male lobster.

The winner will be given the first choice of mating with any batch of females approaching him. If a female approaches and he is interested, he will shoot urinals her way as a sign of courtship.

In addition to urine signals, the female lobster releases pheromones into the water while shedding her shell during molt season. This release of pheromones can attract numerous male suitors at once, leading to a lobster love triangle.

Do Lobsters Communicate with Other Fishes?

The answer is both yes and no. Maximum lobsters live on the ocean floor, rarely finding other fishes. Moreover, lobsters are solitary creatures and don’t have to communicate with other fish.

Lobsters can communicate with other species of sea creatures, such as octopuses and crabs, if they share the same habitat. While you may know that ejecting urine is the only form of communication for lobsters, they may show some activity when communicating with other species.

See also  Do Lobsters Scream? Learn If Lobsters Can Feel Pain

Also See: Shrimp Vs Lobster: What are the Differences?

For example, a lobster might wave its claws to signal danger to an approaching octopus. Likewise, the octopus could use color changes and body movements to communicate with the lobster in return. However, lobsters generally communicate with members of their own species through urine signals.

Do Lobsters Communicate with Humans?

No, lobsters do not have the ability to communicate with humans in any way. They do not understand human language or gestures, and we are unable to interpret the chemical signals they use to communicate with each other.

Lobsters may react when touched or poked, but this does not mean that they are communicating. Therefore, interactions between humans and lobsters are limited to observation and experimentation.


Can lobsters communicate over long distances?

Yes, since they release chemicals through their urine that can travel through water, they are able to communicate with other lobsters even if they are not in close proximity.

But right now, no one knows how far apart they can talk and still understand each other. It is also unclear how specific or targeted their communication can be over long distances.

How do lobsters react in fear?

In short, lobsters will react in fear by trying to hide and stay out of sight until the threat is gone. When faced with a predator, lobsters have a few different strategies for survival.

Some species will curl up into a tight ball, hoping that their hard shells will offer protection. Others will use their large claws to defend themselves, lashing out at anything that comes too close.

See also  Shrimp Vs Lobster: What are the Differences?

In addition, they are known to engage in aggressive behaviour, such as claw waving and snapping, in response to fear or perceived threats. They may also release a chemical signal through their urine to alert other lobsters in the area to potential danger.

These actions serve as a means of self-defence and protecting themselves from harm. However, the most common response is to flee simply. Lobsters can run surprisingly fast, and when they need to hide, they often head straight for the closest place to do so.

Once they are safely hidden away, they will remain motionless, waiting for the danger to pass.

Do lobsters have a way of signalling distress?

Yes, one of the ways that lobsters communicate with each other is by releasing urine. These signals can indicate various emotions or states, including distress. Also, if a lobster is missing limbs or has strange wounds, this could be a sign that it has been in trouble.

A lobster may also be in trouble if it waves its arms too much and rocks back and forth in its shell. These behaviours can also be indicators of aggression or fear, so observing the lobster’s overall body language and behaviour to determine their feelings is necessary.


So, lobsters primarily communicate with each other through the release of urine, which contains chemical signals called pheromones. This form of communication is mainly used for mating purposes and establishing hierarchy.

However, lobsters are solitary creatures and do not typically interact with members of other species, including humans. Therefore, communication between lobsters and humans is not possible.

1 thought on “How Do Lobsters Communicate? Secrets of Their Underwater Talk”

Leave a Comment