Across land, sea, and sky, wildlife photographers are using the power of pictures to ... million plant and animal species are threatened with extinction—mostly through human activity.

Despite its attractiveness, sailors were advised to use caution since the Cecaelia is a dangerous animal ... the human fascination with water and the coexistence of land and sea.

While most sea turtles warm themselves by swimming close to the surface of shallow waters, the Eastern Pacific green turtle will take to land to bask ... nesting grounds by human encroachment.