Years ago, we only thought that rats laughed. We found this out by tickling them and monitoring their responses. But now, a UCLA study has found that there are actually more than 60 species of animals that laugh. The list includes primates, dogs, seals and three species of birds, including the magpie! Researchers study ‘play vocalisations’ which are a form of non-aggressive signals.
Isn’t this such heartwarming news? Tag someone who loves animals!