Scientists have been closely monitoring a map turtle population after 10 percent died in 2022. They found a surprising culprit, and are left concerned for the future.

Grégory Bulté was snorkelling in the cold waters of Ontario's Opinicon Lake when he noticed the first dead turtle.

I took this photo while kayaking a section of the Susquehanna River near the Norman Wood Bridge in Martic Township on May 7, 2023. The northern map turtle (Graptemys geographica), also known as the ...

Add Yahoo as a preferred source to see more of our stories on Google. Each spring, biologist Grégory Bulté catches turtles that have spent the winter hibernating under the frozen surface of Ontario’s ...