Just in case you've been away in some remote location (say, the Antarctic Pole of Inaccessibility) and missed this most famous of all high-pitched squeaks, here's the video that turned a little rain frog into an internet sensation.
Filmed on our South African home turf, this vocal little Namaqua rain frog is less than 5cm long and actually squeaks as a defensive tactic – and not in an attempt to win you over with its cuteness. When feeling threatened, the frog inflates its body and lets off that high-pitched distress call. (We also need to add that it looks exactly like an amphibian version of grumpy cat.)
1 1 Squeaky battle cry of the Namaqua rain frog