Dolphins have longest social memories among non-humans
According to latest researches, Dolphins have longest social memories among non-humans. University of Chicago researchers found that dolphins can recognise their old tank mates' whistles even after being separated for more than 20 years. The remarkable memory feat is another indication that dolphins have a level of cognitive sophistication comparable to only a few other species, including humans, chimpanzees and elephants.
Researchers were not able to determine why dolphins social memories persist such a long time. They exhibit sophisticated social connections that follow a 'fission-fusion' model. In the open ocean, dolphins may break apart from one group and 'fuse' with other groups many times over.
This post contains the world current affairs of August 2013. These are short current affairs 2013 notes for quick review.
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