For some salamanders, finding a mate is a marathon
Treadmill, genetic tests show amphibians travel several kilometers to reproduce
![scientist holding a salamander](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/12/122016_lh_salamander_main.jpg?fit=860%2C460&ssl=1)
ENDURANCE ATHLETES A small-mouthed salamander can travel up to 14 kilometers to reproduce, unlike its clonally reproducing kin. Ohio State University ecologist Rob Denton holds one of these clonal critters.
Kevin Fitzsimons/OSU