It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Life Science: Animals
From the smallest microbe to the largest mammal, Life Science explores the origins, evolution and expansion of life in all its forms. Explore a wide range of topics from animal profiles to genetics and human Biology
If it works for bears, can it work for sharks? If you're swimming alone, it might not be the best idea. But if you're surrounded by scores of thrashing swimmers, playing dead might help you escape the shark's notice.