While these top hunters of the deep blue have evolved to survive cold and dark climates, sharks are no match for the ultimate predator -- humans
Sharks have called the Earth's oceans home for hundreds of millions of years and adapted to thrive in harsh environments.
. That's why Shark Week, running from July 11 through July 18, was launched 33 years ago by Discovery Channel to encourage shark conservation and educate the public on these underwater predators. Has the great white shark really vanished from Cape Town's waters?The world's shark and ray populations plummeted 70% from 1970 to 2018, with overfishing as a primary cause, according to a 2019 study published in the journal Nature.
NASA technology helps save the world's largest shark 03:47One of the sharks is the kitefin shark , which spans nearly 6 feet . It's also the world's largest known bioluminescent shark.Very little is known about sharks that glow because the sharks mostly roam in the deep sea, which begins over 656 feet below the ocean surface. Researchers also discovered the southern lanternshark and blackbelly lanternshark have bioluminescent abilities.
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