Read Emerson’s 1836 essay Nature online. link
Category: nature
A (very) brief history of time, Youtube style
A one-minute timeline of the history of earth
[youtube]http://www.youtube.com/watch?v=YXSEyttblMI[/youtube]
Littering in outer space
As if seeing the earth from space was not already uprooting enough (PDF).
The Nautilus
Some amazing footage of a Nautilus from a nighttime dive by paleontologist Peter Ward.