Since we weren’t able to get to everyone’s questions during our chat on Explore, we answered them here. Watch the full chat here! https://youtu.be/MCtdzn13aSI. How do eagles keep their feet from freezing? An eagle’s legs use counter-current heat exchange to control body temperature. Warm arterial blood flowing from an eagle’s core into its feet passes cool venous blood flowing the other way. Heat is exchanged, warming the blood flowing into its core and cooling the blood flowing into its feet. The