Do you ever wonder how birds migrate over thousands of miles across oceans to the same place, while we get lost within a few streets? Do they have some inbuilt GPS system? How do cats always land perfectly on their feet after falling from any height? The biological world when seen through the lens of physics is biophysics. It is a relatively young, interdisciplinary branch of science that uses the methods of physics to study biological processes. Let's go through this learning module to find answers to the above questions through BIOPHYSICS.