MARION — Scott Smyers, Senior Scientist with Oxbow Associates, will be presenting a study of Wood Frog populations in high elevations in the White Mountains of New Hampshire on Friday, April 12 from 6:30 to 7:30 p.m. at the Marion Natural History Museum.

Take a look at ecosystems that are hidden in plain sight.

Guests will learn about amphibian species distribution, changes in communities and shifts in calling phenology that reveal how complicated these ecosystems are for amphibian survival.

The museum suggests a donation of $10 per person.

Register in advance at marionmuseum.org.