Jungle Shark
Marine biologist Dr. Craig O' Connell and Andy Casagrande travel up the Serena River in the rainforests of Costa Rica to find out why young bull sharks swim up the river, and how they avoid the American crocodiles living there.
Marine biologist Dr. Craig O' Connell and Andy Casagrande travel up the Serena River in the rainforests of Costa Rica to find out why young bull sharks swim up the river, and how they avoid the American crocodiles living there.