Trout in Wyoming's Wind River Mountains show evolutionary adaptation

Researchers from the University of Wyoming have discovered that trout in Wyoming's Wind River Mountains have evolved to develop more gill rakers, which help them retain zooplankton and thrive in the once-fishless alpine lakes. The introduction of fish in these lakes has caused changes in the ecosystem, including a decrease in zooplankton size. The study highlights the rapid evolution of fish populations in response to environmental changes and sheds light on the impact of invasive species. The researchers' ongoing work aims to further understand the ecology and evolution of these alpine lake ecosystems and how climate-driven changes may affect them.