Patrick Blanc observing a sample of a male Piper guineense, Radeau des Cimes, Canopy Raft expedition, Cameroon, 1991
Patrick Blanc reaching the Radeau des Cimes, Canopy Raft, 35 meters above the ground, Campo, Cameroon, 1991
Patrick Blanc holding a bag of botanical samples, Radeau des Cimes, Canopy Raft expedition, Cameroon, 1991
Patrick Blanc and Pascal Heni feeding the bat, Myonycteris torquata, Canopy Raft expedition, Cameroon, 1991
Patrick Blanc and Francis Halle looking at a botanical sample, Radeau des Cimes, Canopy Raft Expedition, Cameroon, 1991