zeb hogan, the host of monster fish, it s tonight at 9:00 p.m. on net geo. why? why do you do that? i don t know. i ve been interested in fish ever since i was a little kid. but there are pirahna in there and other things that would like to chew on your body parts. yeah. that s what i was thinking when i jumped in. what are we looking at right here? that s fresh water stingray. a lot of people don t realize but there s a couple dozen species offing stingray. there are a couple dozen species that live in fresh water, including the world s largest. where did you pull that from? that s an amazon ray. they get up to about two or 300 pounds. then in southeast asia and australia, these rays can get up to 1,000 pounds, 15 feet long. wait a minute. sharks in fresh water? yeah. so we re scared to go to the beach already, now we have to be scared to go on a lake? one of the shows this season, we focus on fresh water sharks.