Male frogs are in a race against time with only three weeks to find a mate before the water refreezes. Their croak speed is a precise thermometer that tells females whether conditions are warm enough for eggs to survive.
Breakdown
- Male frogs croak faster in warmer water to attract mates. 11s
- Female frogs use croak speed to judge if it's safe to lay eggs. 19s
- Climate change alters when lakes thaw and freeze. 24s
- Incorrect timing can prevent a new generation of frogs. 27s
- Changing climate disrupts the frogs' breeding survival equation. 32s