The guy on the back is Lek. He responds to his name......
Some info from Travelfish.org: "Until recently, coconut production was Koh Samui's main industry, and is now second only to tourism. Every month, Samui supplies Bangkok
with more than 2 million coconuts, harvested from the approximately 3
million trees that grow on the island, each of which produces around 70
coconuts per year.
Coconut harvesting monkeys, specifically pig-tailed macaques, are trained on the mainland at a special 1957-founded school in Suratthani. Their training methods are humane and trainers develop a strong bond with their scholars. Farmers enroll their monkeys in a three- to five-month course. Training includes how to twist and bite a coconut loose, how to tell a ripe from an unripe nut, as well as how to load a pickup. These monkeys are generally well looked after by their owners, and they generate a good income. A well-trained monkey can harvest 1,000 coconuts a day, whereas a human with a long stick and loop, can probably only do about 100."
Coconut harvesting monkeys, specifically pig-tailed macaques, are trained on the mainland at a special 1957-founded school in Suratthani. Their training methods are humane and trainers develop a strong bond with their scholars. Farmers enroll their monkeys in a three- to five-month course. Training includes how to twist and bite a coconut loose, how to tell a ripe from an unripe nut, as well as how to load a pickup. These monkeys are generally well looked after by their owners, and they generate a good income. A well-trained monkey can harvest 1,000 coconuts a day, whereas a human with a long stick and loop, can probably only do about 100."