National Geographic has uploaded a preview clip from the upcoming episode “Shark Men – Whale of a Tiger.” The video is shot off Mexico’s Isla Socorro where the “Shark Men” team appear to be attempting to hook a tiger shark (Galeocerdo cuvier).

“Shark Men – A Whale of a Tiger” airs on May 12 (Saturday) at 8pm ET/PT on the National Geographic Channel.

CNN reports that according to recent survey Pacific reef shark populations around islands populated by humans have dropped an estimated 90% when compared to reef areas that are not near human-populated areas. The study used data from over 1,600 surveys of Pacific islands and atolls. Julia Baum, a co-author of the study, indicated that shark fishing was likely the cause of the population decline.

You can read the entire article at CNN.com.