They learned to survive and evolve during intense global and geographic changes. Amnh.org states: “Like all amphibians, frogs are cold-blooded, meaning their body temperature changes with the temperature of their surroundings. When temperatures drop, some frogs dig burrows underground or in the mud at the bottom of ponds. They hibernate in these burrows until spring, completely still and barely breathing. Without a survival mechanism these animals would be here and, as mentioned before, they would have a price to pay. Being able to adapt and survive is an important part of the evolution of species. At the front of my tennis courts, a few meters from the pond, we saw small holes that would soon be covered with dirt. We also drained the pond over the winter so it wouldn't freeze over over the winter. After all, we would always see little burrows in the mud. It's amazing that frogs have learned to do this to survive during the cold