Follows scientists searching waters north of New Zealand for giant mako sharks, discovering a population that might be making a comeback despite being endangered elsewhere.
Scientists seek to find if Big Bull, a bull shark who stretched more than 10-feet long and weighed over 1,000 pounds, is actually the matriarch of a unique population of giants.
Run Time: 0 hours 44 minutes . Uploaded: 2021-08-04 22:59:35