Facts about Pool Frogs

1. 06

   Pool frogs overwinter in mud at the bottom of breeding pools, entering a torpid state where their metabolic rate drops by approximately 90 percent to survive freezing temperatures.

   Pool FrogsMay 14sharehibernationphysiologysurvival
2. 05

   Adult pool frogs typically measure between 16 and 24 millimeters in body length, making them among Europe's smallest frog species.

   Pool FrogsMay 14sharebiologymeasurementmorphology
3. 04

   Tadpoles of Rana lessonae require 60 to 90 days to complete metamorphosis, developing from aquatic larvae into terrestrial froglets capable of leaving breeding pools.

   Pool FrogsMay 14sharebiologydevelopmentlifecycle
4. 03

   During breeding season, male pool frogs remain in amplexus with females for up to 24 hours while eggs are laid and fertilized in shallow water.

   Pool FrogsMay 14sharereproductionbehaviorbiology
5. 02

   Rana lessonae populations declined by over 90 percent across western Europe between the 1970s and 2000s due to wetland drainage and habitat loss.

   Pool FrogsMay 14shareconservationpopulationhabitat
6. 01

   The pool frog's call frequency peaks at approximately 4,000 hertz, making it one of the highest-pitched anuran vocalizations in European wetlands.

   Pool FrogsMay 14sharebiologymeasurementacoustics