Frog (Ecology Series)

Frogs are a group of mostly carnivorous tailless amphibians and have been around at least 275,000,000 years ago. Astonishingly, the oldest frog fossil ever discovered is believed to have existed in the Permian period (before the Triassic period) due to molecular dating. The habitats of frogs are across the globe, deserts to rain forests  to subarctic regions like Alaska and Siberia. In addition, when temperatures get below freezing and ice crystals try to form beneath their skin and in their organs, some frogs survive! Amazingly, they can make antifreeze and use it to prevent the freezing of their organs. Actually, a frozen frog will stop breathing and it's heart will stop beating, clinically dead. However, when the temperature rises above freezing, the heart and lungs resume activity and the frog becomes alive, according to scientific american.org. These frogs are able to survive because the brain becomes dormant (no brain waves), there organs shrivel up releasing the water so that the cells don't die from being frozen, and they make antifreeze.



Frog calls