For those of you interested in exploring our world, BBC America is broadcasting 3 Sir David Attenborough specials under the heading BBC Earth this Sunday, June 21st, from 5:00 p.m. – 8:00 p.m. EST.  Sir David, after 50 years of making natural history programs, has become the most travelled person in human history except for the astronauts.  Here's a link: http://www.bbcearth.com/

The shows are:

5:00 pm  Great Natural Wonders of the Word – Sir David Attenborough travels across the seven continents in an intrepid quest that begins in North America and ends in Antarctica.

6:00 pm  Greatest Wildlife Show on Earth – Sir David Attenborough uses state-of-the-art satellite imagery to uncover that the natural rhythms of life–the urge to breed, to feed and to raise young– are actually driven by the sun, the moon and the seasons.

7:00 pm  Charles Darwin and the Tree of Life – Sir David Attenborough dives into Darwin's theory of evolution, uncovering why it is more important now than ever before.