Sharks episode 3

Shark episode 3: Sharks are among the most misunderstood predators on the planet, but an international team of scientists is trying to change that. Their research is revealing that sharks can be sociable and intelligent, and they could even help solve some of the toughest medical challenges of the 21st century.
Last Nature posts on HDclump.com and ClumpHD.com:
https://hdclump.com/winterwatch-2021-episode-3/
https://hdclump.com/winterwatch-2021-episode-2/
https://hdclump.com/winterwatch-2021-episode-1/
https://hdclump.com/a-perfect-planet-episode-4-oceans/
https://hdclump.com/a-perfect-planet-episode-3-weather/
https://hdclump.com/a-perfect-planet-episode-2-the-sun/
https://hdclump.com/a-perfect-planet-episode-1-volcano/