Shark Week - Season 29 Episode 12
Marine biologist Dr. Craig O'Connell and Andy Casagrande travel up the Serena River in the rainforests of Costa Rica to try and find out why young bull sharks swim up the river, and how they avoid the 12-14' American crocodiles living there. O'Connell deduces the sharks smell the crocs and creates a first-of-its-kind croc scent-based bull shark repellant - and SHARK WEEK reveals a possible important discovery that could save human lives
First Air Date : 1988-07-17
Last Air date : 2024-07-13
Runtime : 57 minutes
Genre : Documentary
Cast :
Crew :
Quality : 
Subtitles :
- Season 29 : Episode 12016-06-26
- Season 29 : Episode 22016-06-26
- Season 29 : Episode 32016-06-26
- Season 29 : Episode 42016-06-27
- Season 29 : Episode 52016-06-27
- Season 29 : Episode 62016-06-27
- Season 29 : Episode 72016-06-28
- Season 29 : Episode 82016-06-28
- Season 29 : Episode 92016-06-29
- Season 29 : Episode 102016-06-29
- Season 29 : Episode 112016-06-30
- Season 29 : Episode 122016-06-30
- Season 29 : Episode 132016-07-01
- Season 29 : Episode 142016-07-01
- Season 29 : Episode 152016-07-02
- Season 29 : Episode 162016-07-03
