A startling discovery inside a dark sewer crawling with strange, alien-like fish, revealing their bizarre behavior and how they ended up in such an eerie place. Reporter's notebook: House exodus ...

The vast majority of our planet remains a complete mystery, hidden beneath miles of crushing water where sunlight never penetrates. In this eternal darkness, evolution has taken a path so bizarre that ...

A strange green pond, thick with slime, holds an even stranger secret inside. When the water clears, an alien-like fish appears, defying all logic. Is it mutation, survival, or something else entirely ...