Oceans without sharks would be much less healthy – new research

There are over 500 species of sharks in the world’s oceans, from the 7-inch dwarf lanternshark to whale sharks that can grow to over 35 feet long. They can be found from polar waters to the equator, at the surface and miles deep, in the open ocean, along coasts, and even in some coastal rivers. … Read more

Oceans without sharks would be much less healthy – new research

There are over 500 species of sharks in the world’s oceans, from the 7-inch dwarf lanternshark to whale sharks that can grow to over 35 feet long. They can be found from polar waters to the equator, at the surface and miles deep, in the open ocean, along coasts, and even in some coastal rivers. … Read more

Unraveling the mystery of when and where sharks give birth

If you have a toddler, or have encountered one in the past year, you’ve almost certainly heard the song “Baby Shark.” Somehow, every child seems to know the song, but scientists actually know very little about where and when sharks give birth. The origins of these famous baby sharks are still largely a mystery. Many … Read more

How Tiger Sharks Used Cameras to Reveal the World’s Largest Seagrass Ecosystem

Editor’s Note: Call to Earth is a CNN editorial series reporting on the environmental challenges facing our planet, along with the solutions. Rolex’s Perpetual Planet initiative partners with CNN to raise awareness and education around important sustainability issues and inspire positive action. Tiger sharks, the largest apex predator in the tropical seas, are notoriously fierce. … Read more