Gray treefrogs are hard to see but easy to hear. Special thanks to our friend and naturalist John Howard for the amazing photos.

Our sources for this episode include:

• Gray Treefrog
  https://nationalzoo.si.edu/animals/gray-tree-frog
• Cope's Gray Treefrog (Hyla chrysoscelis)
  https://srelherp.uga.edu/anurans/hylchr.htm
• Gray Treefrog
  https://nhpbs.org/natureworks/graytreefrog.htm
• Science Around Cincy: Clara do Amaral – Frog Cryobiologist
  https://sciaroundcincy.com/2019/07/25/clara-do-amal/