Permaculture instructor Andrew Millison visits beaver dams talks about how beavers are the worlds greatest ecosystem engineers. He journeys to different permaculture sites in Oregon to see how these sites are actually mimicking the...

Jamie Foxx at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Magic Johnson at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Chazz Palminteri at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Down to Earth Premiere at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Marquee at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Frankie Faison at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Chris Weitz at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Chris Rock at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Eugene Levy at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Regina King at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Regina King at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)

Monica at the 'Down to Earth' Premiere at Grauman's Chinese Theatre in Hollywood, California on February 12, 2001. (Footage by WireImage Video/Getty Images)