And when it comes to mating, this family of frogs has a unique trait not seen in other frogs.

They typically like to live near fast streams and, if a pair decides to mate, they will spend five minutes searching for a private spot.

‘The male quickly carves out a chamber by excavating the sand around small rocks at the bottom of the stream,’ said Agata Blaszczak-Boxe from New Scientist.

‘Then, like Christian Grey from Fifty Shades he invites his mate into his sex dungeon, which is only just big enough to fit the two amorous amphibians.’