Did you know that lions and tigers can’t purr, but cougars can?
Now you do!
According to National Wildlife magazine:
In big cats – lions, tigers, leopards, jaguars – a length of tough cartilage runs up the hyoid bones to the skull. This feature prevents purring but also gives the larynx enough flexibility to produce a full-throated roar – 114 decibels’ worth in the case of one lion tested.
Only the smaller cats – not just house cats, but also bobcats, ocelots, lynxes and others – have what it takes to purr. The relevant apparatus is a tightly connected linkage of delicate bones running from the back of the feline tongue up to the base of the skull.