Hikers in Papua New Guinea heard the “harsh” sound coming from the treetops and followed it. Take a look at what they discovered.

They followed the call to its source and found a “slender” creature with a “long” tongue. It turned out to be a new species ... or Purari narrow-mouthed frog. Photo from Günther, Nagombi ...

Imagine if you could stick out your tongue and lick your belly button. Turns out that would be an easy feat for a frog if they actually had belly buttons. A frog's tongue is one-third of its body ...