The most fascinating shark discoveries of the past decade

National Geographic | Jul 28, 2020 at 10:39 PM
  • Bamboo sharks walk.
  • Researchers such as Barbara Block, a marine biologist at Stanford University, have been placing GPS tags on sharks and tracking their movements—and revealing their secret lives.
  • In 2007, scientists studying the diet of bonnethead sharks found bellies full of up to 60 percent seagrass.