which give them a “grumpy looking” expression — and the newly discovered “Boston rain frog” is no different. Despite their frowny faces, the meme-worthy amphibians are key to happy habitats.

Believing they heard the calls of the elusive Braviceps bagginsi, or Bilbo’s rain frog, they scoured the field for the hard-to-find amphibians. Despite having a nearly identical call to the ...