Hunting in Indonesia; the matrilineal Minang people of Sumatra.
Simon explores the oil-rich Gabon, Africa; a village where the locals are banned from hunting.
Tourists may be threatening the Galapagos Islands; El Reventador volcano.
Africa's Great Rift Valley turns creatures of the forest into rulers of the grasslands.
Animals in the tropical jungle and on the coral reef.
Animals and plants cope with constantly changing weather in the Andes.
Fish living in the Amazon River struggle through drought for six months.
The rain forests of South East Asia are home to a large diversity of plants and animals.
How ocean currents affect the animals on the Galapagos and Palmyra islands.