One of the few amphibians that can survive the harsh winter conditions of boreal and subarctic areas is the wood frog, a prime example of organisms poised to feel the effects of climate change in the region. But these frogs need up to two months to develop from tadpoles and grow before the onset of summer. As the changing climate in the region shortens the window of time between snowmelt and the beginning of summer, frogs may be smaller when they emerge.