Photographer: Haolun Tian

Location: South Frontenac, Eastern Ontario, Ont./Ont.

This is a green frog that I saw by the side of the road at Lake Opinicon, near the Queen’s University Biological Station. This waterway is part of the Rideau Canal, a UNESCO World Heritage site that links Lake Ontario at Kingston with Ottawa. The lakes here are rich in biodiversity, yet threatened by invasive species. Amphibians are the most threatened group of vertebrates in the world, and monitoring them is critical to understanding ecosystem health.