Describes and explains eleven ecological mysteries of nature including ant-infested plants, deadly poison frogs, and helpful parasites.

Where are all the animals? -- How many species? -- The monkey that fell from the trees -- The mystery of the ant-plant's army -- Tricksters in the trees -- The search for the deadly frog's poison -- The curious case of the helpful parasites -- The butterflies' strange pursuit -- The case of the winged fruit thieves -- The mystery of the monkey dung -- The mystery of the unknown pollinators -- How much forest is enough?