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is a non-human animal communication that is similar to human
language.
Humans are different from other animals. One of these
differences can be found in the use of language.
Differences between animal and human communication, as we
shall see, are profound, but all the differences seem to derive
from a single basic fact:
ANIMAL LANGUAGE
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Animals may not be able to master language, but all
animals communicate, or intentionally transmit
information to each other. In fact, the ability to
communicate effectively is essential to their survival.
This communication can take on a variety of forms
such as:
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Pheromones
� Ants also use pheromones to communicate
their social status, or role, in the colony, and
ants of different "castes" may respond
differently to the same pheromone signal
cubed. A squashed ant will also release a burst
of pheromones that warns nearby ants of
danger—and may incite them to swarm and
sting.
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Pheromones
� Dogs also communicate using pheromones.
They sniff each other to collect this chemical
information, and many of the chemicals are also
released in their urine. By peeing on a bush or
post, a dog leaves a mark of its identity that can
be read by other passing dogs and may stake its
claim to nearby territory.
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Smell,
� Smell, such as a male lion scent marking its
territory to tell other male lions to stay away
Color, such as a Humboldt squid flashing
bioluminescent colors to send signals to other
squids, or an octopus changing color (and
texture!) to indicate irritation or fear.
Male Lions Show Us what Scent Marking
Looks Like in Thermal!
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� Monkeys cry out a warning when a predator is near, giving the
other members of the troop a chance to escape. Vervet monkeys
even have different calls to indicate different predators
AUDITORY SIGNAL
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VISUAL
� Visual communication involves signals that can be seen. Examples of these
signals include gestures, facial expressions, body postures, and coloration.
� Gesture and posture are widely used visual signals. For instance,
chimpanzees communicate a threat by raising their arms, slapping the
ground, or staring directly at another chimpanzee. Gestures and postures are
commonly used in mating rituals and may place other signals—such as
bright coloring—on display.
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� such as a peacock displaying its tail feathers and dancing to attract a mate or the
appropriately named peacock spider who also has an elaborate dance and colorful
display to impress females. All systems of communication contain signs, units of form
with a specific meaning (words).
Visual displays,
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VISUAL
� For instance, in some species of
monkeys, the skin around a female’s
reproductive organs becomes
brightly colored when the female is
in the fertile stage of her
reproductive cycle. The color
change signals that the female can
be approached by suitors.
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Tactile signals—touch
Tactile signals are fairly common in insects. For instance,
a honeybee forager that's found a food source will
perform an intricate series of motions called a waggle
dance to indicate the location of the food. Since this
dance is done in darkness inside the nest, the other bees
interpret it largely through touch.
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Tactile signals—touch
Tactile signals also play an important role in social
relationships. For instance, in many primate species,
members of a group will groom one another—removing
parasites and performing other hygiene tasks. This
largely tactile behavior reinforces cooperation and social
bonds among group.
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� non-vocal noises include a dolphin slapping its tail on the water's
surface to warn other dolphins of danger or a rabbit thumping its
hind foot to signal danger.
non-vocal noises
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What is this communication
used for?
As the examples above illustrate, animals communicate
using many different types of signals, and they also use
these signals in a wide range of contexts. Here are some
of the most common functions of communication
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Obtaining mates
• . Many animals have elaborate communication
behaviors surrounding mating, which may involve
attracting a mate or competing with other potential
suitors for access to mates.
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� • . In social species, communication is key in coordinating
the activities of the group, such as food acquisition and
defense, and in maintaining group cohesion.
Coordinating group behaviors
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� • . Among species that provide parental care to offspring,
communication coordinates parent and offspring behaviors to help
ensure that the offspring will survive.
Caring for young