However, humans are a larger threat to sharks than sharks are to us. Sharks may be helpful for our environmentTiger sharks, one of Australia’s primary predators, may help ecosystems respond to extreme climate events. “It seems like it’s more than just tiger sharks,” Heithaus said. Some sharks, like mako sharks and bull sharks, give live birth, while other sharks, like cat sharks, lay eggs, said Jasmin Graham, president and CEO of Minorities in Shark Sciences, based in Bradenton, Florida. With this finely attuned sense, sharks hunt sick and weak animals, playing a crucial role in keeping the marine ecosystem healthy.

---

Persons: Michael Heithaus, Pangea, Catherine Macdonald, Heithaus, ” Heithaus, “ It’s, mako, Jasmin Graham, “, ” Macdonald Organizations: CNN — Sharks, Discovery, Discovery Channel, CNN, Warner Bros ., College of Arts , Sciences & Education, Florida International University, Sharks, Science, Field School, University of Miami’s Rosenstiel, of Marine, Fiji Islands . Media, Minorities, Shark Sciences Locations: Miami, Atlantic, Greenland, Beqa Lagoon, Fiji, Bradenton , Florida