On what basis is the tiger census in our national parks calculated?ANumber of stripesBNumber of legsCNumber of limbsDNumber of pug marksAnswer: D. Number of pug marks Read Explanation: The tiger census in our national parks calculated on the basis of the number of pug marks. It is one of the most popular techniques to calculate the number of tigers. According to 2018 reports, the tiger population has increased up to 3000. Read more in App