C. Great white sharks feed under the ocean’s surface, in the middle of the water column or lower. That fin-above-the-water image is an outdated stereotype.
YIN WENJIE/Moment/Getty Images
B. Orca. Scientists have observed Great White Sharks fleeing the Farallon Islands if they smell an orca within two miles.
D. Liver. In 2017, three great white shark carcasses washed up on a beach in South Africa — with their livers missing. Scientists determined that orcas were the culprit.
D. Environmental DNA. Scientists are perfecting a technique to test ocean water for DNA from substances sharks leave behind.