On Wednesday, December 7, 2011, 8:00-9:00 p.m. ET and Sunday, December 11, 2011, 8:00-9:00 p.m. ET, the PBS series Nature will air an episode called Echo: An Elephant to Remember . Echo , the elephant matriarch, was the subject of many films and the leader of a much studied herd of elephants in Africa. Echo died of natural causes at the age of 65 in May of 2009. This film, which premiered in October of 2010, is a look back at this remarkable animal through extraordinary footage and interviews with the researchers who cared for and studied the herd, which was the subject of a number of documentary films and books over the years. (See list below.). The film presents significant events in Echo’s...      Read more...