Most living creatures engage in some form of sleep. Countless studies illustrate how animals adapt sleep for their own particular needs. Primates, elephants, marine mammals, insects, birds - even our own pet dogs and cats - all sleep differently. Even very simple organisms that lack a brain and central nervous system practise a version of sleep.  It appears sleep is essential behaviour for most living things - but why? What is the biological purpose of sleep? How the Wild Things Sleep peers under the covers of the wonderful world of slumber to reveal some surprising answers. Original air date: March 11, 2022.

From the Curio.ca streaming audio-visual collection.