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New research suggests that dolphins may have a spoken language of their own; in a recent study by Russian researchers two dolphins communicated using a series of whistles and clicks (called pulses), and didn't ever interrupt each other. They also noted that the pulses sounded like sentences. With new recording technologies, the researchers were able to separate potential words from filler clicks, and the researchers hope to one day build a machine that will allow humans and dolphins to communicate.

Researchers found that each dolphin has a unique sound or whistle and that dolphins mimic those that are nearby and want to see again.

This article explains how close we are getting to understanding Dolphin's language. They language consists of sentences, similar to ours, where the order of the words determine the meaning of the sentence. They also apparently take turn talking, as we do. So all scientists need to do now is figure out what meaning matchings each sound. This is where AI (aka. Artificial intelligence) comes in. Scientists will be using one to help figure out meanings to sounds. This will be taking place in a wildlife park south of Stockholm to Bottlenose dolphins.

Animals too rely on structured communication systems to help transmit information. In fact, the ability to communicate information is ubiquitous in the animal kingdom : all life on this planet is able to communicate, both with other individuals of the same species, and with individuals of different species.

Dolphins have complex communication forms, including different forms for casual communication, communication while hunting and communication between mothers and calves. They communicate using sounds, body language and touch.

Science writer Virginia Morell, in her wonderful new book Animal Wise, describes an experiment involving horses and whinnies - whinnies being very like names. She also cites the research of ornithologist Karl Berg, who states that while most people might think, 'Well, all those [bird] calls are just noise, but I think they're having conversations." Berg has listened to so many parrots in so many nests for so long, he has been able to identify that weeks after birth, these little birds begin to use very specific peeps to identify themselves to others. Not only that, they learn the peeping "names" of their parents, brothers, sisters, and use them in conversation, as in, "Peep-duh-dee-Peep, is that you?" Apparently, dolphins also use particular clicks and whistles to designate particular individuals.

Unlike dolphins sharks are loners from birth. However they still have an intricate form of communication involving vibrations that are inaudible to humans, body gestures and extreme aggression.

"Two vital parts of mentally organizing the world are classification, or the understanding that similar things belong in the same category; and induction, an educated guess about a thing's properties if it's in a certain category. ... 'For the last 30 to 40 years it has been believed that even for very young children, labels are category markers, as they are for adults,' explains psychologist Vladimir M. Sloutsky ... To test their hypothesis, the psychologists showed pictures of two imaginary creatures to preschoolers and college undergraduates. Both animals had a body, hands, feet, antennae, and a head. ... The difference arose when the head was a jalet's but [the] label was "flurp," or vice-versa. Then, most of the adults went with the label (we accept that a dolphin is a mammal, even though it looks and swims like a fish). The children relied on the head for identification. Regardless of its name, a thing with a jalet's head is a jalet." Link to the study (PDF): http://cogdev.cog.ohio-state.edu/Papers/2011/SD-VS-PsychScience.pdf

Tetsuro Matsuzawa, a Japanese primatologist, has spent 30 years studying our closest primate relative, the chimpanzee, to better understand the human mind. Here are some key takeaways: -Captive chimps can learn sign language or other communication techniques. They also can string together the symbols or gestures for words in simple "Me Tarzan, You Jane" combinations. -The animals use pant-hoots, grunts and screams to communicate. -In decades of ape language experiments, the chimpanzees have never demonstrated a human's innate ability to learn massive vocabularies, embed one thought within another or follow a set of untaught rules called grammar. So yes, chimpanzees can learn words. But so can dogs, parrots, dolphins and even sea lions. Words do not language make. Chimpanzees may well routinely master more words and phrases than other species, but a 3-year-old human has far more complex and sophisticated communication skills than a chimpanzee. "I do not say chimpanzees have language," Matsuzawa stresses. "They have language-like skills." -Monkeys can learn to use tools and do utilize tools, but there doesn't seem to be signs of them "teaching" each other these skills: it's more of a watch, then do situation.