06/03/2026
Meet one of the Eno’s small nighttime musicians: the Cope’s gray treefrog, spotted here at the Confluence Natural Area! This amphibian has an amazing cold-weather survival trick, as its body can produce natural “antifreeze” compounds like glycerol that protect its cells while up to 65% of its bodily water freezes. During this time, the frog’s brain activity, breathing, and heartbeat cease entirely. When spring arrives, the frog simply thaws out and hops away 🤯
This time of year, listen for the males calling on warm evenings and rainy nights — a short, rapid, musical trill!
📸: Eno Staff [Image description: a Cope’s gray treefrog rests on a small branch surrounded by green leaves]