Huge Victoria Regia water lilies in one of the tributaries of the Amazon to Iquitos about 40 miles near the town of Indiana. The Amazon lily is a peculiar pollination cycle. The giant flowers open at dusk at a rate easily detectable. The flowers produce a strong smell of candy, and trigger a stimulus that raises the temperature of the central flowering 11 above ambient. The fragrance combined with the heat, attracts beetles gather in the center of the flower. As the evening progresses, the flower closes, trapping inside the insects. At dawn, the flowers change to pink and beetles feed on the internal structures of the flower. At dusk, the flowers have become a dark reddish-purple color, open and covered with pollen beetles fly off to find another water lily. In doing so, carry pollen from flower and pollinate the first to the second.