Tickled Apes Yield Laughter Clue
I suggest watching the videos associated with this story…
New research has given credence to the idea that laughter evolved in a common ancestor of the great apes and humans.
Researchers tickled 22 young apes and three humans and acoustically analysed the laughing sounds that resulted. Though the vocalisations varied, the team found that the patterns of changes fit with evolutionary splits in the human and ape family tree.
The research in Current Biology also suggests that gorillas and bonobos have some control over their breathing. Primate researchers have long guessed that many of the social behaviours that are seen in humans have a basis in our primate lineage. Studies have noted that vocalisations that some apes make while being tickled are similar to those made when they are playing, and acoustically they share some characteristics with human laughter…. (continues @ BBC News)
