Scienceline
July 25, 2016
Your biological clock is ticking.
It’s mid-May. You’re looking for the perfect spot, along the river’s edge where the swift, cold water won’t sweep your precious eggs away. You also need some grass, and it must be just the right height. If it’s too tall, your eggs could get stuck; too short, and they could drown. When you finally pick the spot — close to where you hatched a few years earlier — you can only hope the water will still be there when your tadpole children finally emerge from their eggs a few weeks later to make their way into the river.
kelsey kennedy 