Great white sharks are protected by US laws. That's helping the predators' numbers float higher.
, the director of the Shark Lab at California State University Long Beach, also points to better technology as key to improved scientific and popular understanding of sharks’ numbers. The widespread use of GoPros, phone cameras, and drones have been useful tools for biologists, and have made it easier for more beachgoers to capture and disseminate videos, photos, and shark alerts.
Climate change could be behind the increase in shark sightings and encounters, too, according to Lowe and other researchers. Warmer temperatures are forcing more people to hit the ocean to, increasing the odds that someone will bump into a shark cruising the shallows. “Millions of people are using SoCal beaches alone,” Lowe explains. “And the more people there are in the water, the greater the probability of an encounter.
Shark researchers like Lowe don’t know exactly how healthy the great white population is right now, because there isn’t good data on their numbers before they were overfished in the 1970s and ’80s. For the same reason, they’re not sure when the species’s population will stop increasing. But it’s a heartening example of successful conservation interventions that could be applied to other shark species and populations around the world.
On the flip side, like cougars, wolves, and other large predators that people brush up against, sharks basically never kill and eat humans for prey. But since accidents can happen, Chisholm and other shark experts recommend taking precautions when entering salt water, just like you would for a hike in bear country.
Most importantly, pay attention to your surroundings when you’re in the water. Don’t just steer clear of fins—also look out for anything sharks actually do want to eat, like fish schools, seals, and bait. There are more sharks and humans in the water than there used to be, but there should also be plenty of room for both to coexist.
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