Examples of biological intruders. Come on!

/kloc-In the middle of 0/9th century, a European explorer came to the Mexican jungle and saw this plant called "Mykonia" for the first time. It belongs to Paeoniaceae, usually more than ten meters high and has no flowers, but it has wide and thick leaves-the sunny side is green, and the shady side is bright purple, which is very special and beautiful. Explorers were attracted by "Mikonja", picked its leaves and fruits, and brought "Mikonja" and other exotic objects back to the European continent.

196 1 year, a European gave a bag of "Mykonia" seeds as a gift to a botanical garden in Hawaii. "Mykonia" grows vigorously and reproduces rapidly. Soon, "Mykonia" was sold to the nursery and became a very popular ornamental plant on the island of Hawaii.

But at that time, no one found that "Mykonia" is a very destructive plant, and its arrival will bring great changes to this land.

Experts pointed out that although the growth of plants seems calm and uncontroversial, in fact, the world of plants, like the animal kingdom, is full of struggles between you and me. Plants with strong viability often plunder and destroy the living resources of other plants.

Merconia is one of them. Another alien creature, the dark green embroidered bird from Japan, inadvertently became Mai Kania's "accomplice". Dark green embroidered birds like to eat Mykonia's fruit very much, although the fruit of this plant is very small, with hundreds of seeds in each fruit. After eating the fruit, the dark green embroidered bird became a voluntary sower. They fly freely in the jungle and spread undigested seeds in all directions.

Because Macania, Hawaii has no natural enemies, but it has suitable temperature, fertile soil, plenty of sunshine and water, and each plant can fully stretch around at will, absorb water and occupy space. In just over 40 years, the coverage area of "Mykonia" on the big island of Hawaii has reached 1 10,000 acres, about 4,000 hectares. Tall and straight "Mykonia" plants are like handfuls of green umbrellas. In its shadow, relatively small native plants in Hawaii gradually withered and died because they did not get enough sunlight, water and nutrients. It is these native plants that were originally used by local people to preserve the precious fresh water on the island of Hawaii and feed all kinds of animals that eat them. What is even more frightening is that the decline in the viability of dwarf plants has also led to the increasingly loose forest soil and the danger of mudslides at any time. Faced with such tenacious vitality and irresistible destructive power, biologists compare it to "green cancer".