Duluth Frog Blog

Gray treefrogs ( Hyla versicolor ) are often heard calling from trees near and over wetlands. Recording of the gray treefrog (from the Amp...

Vernal pools are small seasonally flooded wetlands that provide vital habitat for many native amphibians and aquatic insects that require ...

Spring has finally arrived in Duluth! Vernal pools (small, temporary wetlands) are almost ice free and wood frogs and spring peepers are s...

DULUTH, Minn. –  Outdoor enthusiasts of all ages are invited to learn about two research opportunities taking place at Hartley Nature Cente...

"Whatever happened to the ‘deformed frogs’ problem?"    This is a question that we get all the time. I have tried to an...

Wood frog tadpoles in Duluth are about 10 mm long right now (about the length of my pinkie finger nail). At this size, they are hard to phot...

 Fairy shrimp are small crustaceans that live in the same small temporary wetlands that wood frogs use for breeding. These aquatic cri...