Some rats are more ticklish than others – and you can tell by how much they squeak with ‘laughter’

Some rats are more ticklish than others – and you can tell by how much they squeak with ‘laughter’ Rat call patterns could be used to measure their emotional response to actions They emit a number of high frequency vocalisations in a response to tickling  This is similar to human laughter but it was impossible to tell … Read more