Joe > Average Posted August 13, 2013 Author Posted August 13, 2013 Dolphins 'call each other by name'Scientists have found further evidence that dolphins call each other by "name". Research has revealed that the marine mammals use a unique whistle to identify each other. A team from the University of St Andrews in Scotland found that when the animals hear their own call played back to them, they respond. The study is published in the Proceedings of the National Academy of Sciences. Dr Vincent Janik, from the university's Sea Mammal Research Unit, said: "(Dolphins) live in this three-dimensional environment, offshore without any kind of landmarks and they need to stay together as a group. "These animals live in an environment where they need a very efficient system to stay in touch." Signature whistles It had been-long suspected that dolphins use distinctive whistles in much the same way that humans use names. Previous research found that these calls were used frequently, and dolphins in the same groups were able to learn and copy the unusual sounds. But this is the first time that the animals response to being addressed by their "name" has been studied. To investigate, researchers recorded a group of wild bottlenose dolphins, capturing each animal's signature sound. They then played these calls back using underwater speakers. "We played signature whistles of animals in the group, we also played other whistles in their repertoire and then signature whistles of different populations - animals they had never seen in their lives," explained Dr Janik. The researchers found that individuals only responded to their own calls, by sounding their whistle back. The team believes the dolphins are acting like humans: when they hear their name, they answer. Dr Janik said this skill probably came about to help the animals to stick together in a group in their vast underwater habitat. He said: "Most of the time they can't see each other, they can't use smell underwater, which is a very important sense in mammals for recognition, and they also don't tend to hang out in one spot, so they don't have nests or burrows that they return to." The researchers believe this is the first time this has been seen in an animal, although other studies have suggested some species of parrot may use sounds to label others in their group. Dr Janik said that understanding how this skill evolved in parallel in very different groups of animals could tell us more about how communication developed in humans. They're definitely smart and their cerebral cortex is larger than ours. They are similar to us in many ways though. They recognize their own reflection (though dogs and elephants do as well) as we do and also have sex with other species. Some humans of course have sex with animals and dolphins have sex with humans although it is the cause of at least 15 human deaths a year unfortunately. Whether this is the intent or the cost of doing business may not currently be known. Quote
ryangosling10 Posted August 31, 2013 Posted August 31, 2013 (edited) http://www.fbcoolcovers.com/wp-content/uploads/2012/11/dswdwd.jpg Please textlink or upload images onto a host instead of hotlinking. For more information click HERE. Thanks! ~post edited by PinkCouture Edited August 31, 2013 by PinkCouture Quote
2324lebron Posted October 19, 2013 Posted October 19, 2013 It takes 21 seconds to go: Scientists discover that all mammals urinate for roughly the same length of time http://www.dailymail.co.uk/sciencetech/article-2467168/It-takes-21-seconds-Scientists-discover-mammals-urinate-roughly-length-time.html#ixzz2iCN51deY Quote
2324lebron Posted November 29, 2013 Posted November 29, 2013 Warning: Graphic content http://www.youtube.com/watch?v=dCsMNurn3bQ you can see some of the results in this videohttp://youtu.be/wDZnsb2yZng?t=3m28s Quote
jj3 Posted November 29, 2013 Posted November 29, 2013 ^ I already saw this video on internet recently and i must say that i'm pretty glad that this kind of thing doesn't happen with my sardines Quote
2324lebron Posted February 14, 2014 Posted February 14, 2014 Big Cat Spotlight: The Snow Leopardhttp://imgur.com/gallery/qwiZz Quote
Shepherd Posted February 16, 2014 Posted February 16, 2014 Whistling swans, Mallard ducks & Ring necked ducks at a pond near my home. The swans are "George & Gracie" and have been there since 2001. Quote
MauiKane Posted February 28, 2014 Posted February 28, 2014 MOLA MOLA The ocean sunfish, Mola mola, or common mola, is the heaviest known bony fish in the world. It has an average adult weight of 1,000 kg (2,200 lb). The species is native to tropical and temperate waters around the globe. It resembles a fish head with a tail, and its main body is flattened laterally. Sunfish can be as tall as they are long when their dorsal and ventral fins are extended. Sunfish live on a diet that consists mainly of jellyfish, but because this diet is nutritionally poor, they consume large amounts in order to develop and maintain their great bulk. Females of the species can produce more eggs than any other known vertebrate. Sunfish fry resemble miniature puffer fish, with large pectoral fins, a tail fin and body spines uncharacteristic of adult sunfish. wikipedia.org Quote
2324lebron Posted March 2, 2014 Posted March 2, 2014 What happens when you pay to monkeys unequally? Amazing experiment on capuchin monkeys and fairness.http://imgur.com/gallery/FHjJF Quote
2324lebron Posted March 11, 2014 Posted March 11, 2014 Hippos fend off crocodile attack on a gnu. pics and videohttp://www.dailymail.co.uk/news/article-2578257/Hip-hip-hooray-Hippos-fight-crocodile-attacking-gnu-escort-animal-safety.html Quote
2324lebron Posted April 16, 2014 Posted April 16, 2014 When two tribes go to war: Incredible moment legion of hippos turn and flee after stand-off with more than 100 crocs in epic Zambian river battle http://www.dailymail.co.uk/news/article-2605827/When-two-tribes-war-Incredible-moment-legion-hippos-turn-flee-stand-100-crocs-epic-Zambian-river-battle.html#ixzz2z3sSsBrH Quote
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