-
Wisconsin DNR asks for public help with frog and toad surveys
Multiple ways to participate in the longest-running citizen science frog calling survey in North America.
-
Scientists use traces of DNA in river water to learn about invasive carp
State and federal agencies partner to determine where carp might be in lower St. Croix.
-
The good, the bad, and the algae: Aquatic plants can be helpful or harmful
Experts explain the different kinds of algae that river users might see on the St. Croix.
-
Six ways of seeing the St. Croix: Bedrock geology
The rock underlying the river region spans Earth’s history — and affects the present day.
-
Groundbreaking study finds widespread lead poisoning in bald and golden eagles
Nearly 50 percent of birds sampled showed evidence of repeated exposure to lead.
-
The travels of lake sturgeon
The DNR has tagged hundreds of sturgeon in the St. Croix to track their age, movements, and more.
-
Six charts explaining the science of climate change
Take a closer look at what’s driving climate change and how scientists know CO2 is involved.