River
- Episode aired Dec 5, 2002
- 48m
![Built for the Kill (2001)](https://m.media-amazon.com/images/M/MV5BYzAyNzFlMzktMjY0My00N2VhLWIyYWYtZGZlNTBiYTJkOTcwXkEyXkFqcGdeQXVyOTQ4Mjg0NDk@._V1_QL75_UY281_CR155,0,190,281_.jpg)
The animals that live on, and over the Earth's rivers are some of nature's most specialized killers; from the Archer Fish to the Giant Otter.The animals that live on, and over the Earth's rivers are some of nature's most specialized killers; from the Archer Fish to the Giant Otter.The animals that live on, and over the Earth's rivers are some of nature's most specialized killers; from the Archer Fish to the Giant Otter.