Belay Devices: Are they well suited for Tree Climbers?

Written by: John Greer & reposted from TreeXP.com There has been a lot of discussion about using belay devices for tree climbing. Many belay devices are lightweight and perform well for their intended uses. Products like the Trango Cinch and…

Cradle in the Tree of Life

Part II by Dr. Donald Perry Dr. Perry welcomes your comments and questions. Please email him at canopy evolution at gmail.com The fruits of our creativity – music, dance, mathematics, technology, and our awareness of the universe – are the result of evolutionary events that…

Climbing the Tree of Knowledge

Part I by Dr. Donald PerryDr. Perry welcomes your comments and questions. Please email him at canopy evolution at gmail.com In 1973 I took a class in tropical biology where I was astounded to learn that while most rain forest species lived in the…