There is a fish that lives in tropical ocean coral reefs. The male body color is blue with green, red and orange, and the female body color is light red or purple with a white stripe in between. Their body length can reach 1.2 meters. The weight can reach 20 kg. People call them “parrot fish” because they are colorful and as brilliant as parrot birds. There are usually large stretches of beautiful white sandy beaches where parrot fish activities, so many popular tropical beach resorts have been created. In fact, such beach resorts are not made specifically for humans, but purely for parrot fish.
This starts with the living habits of the parrot fish. For 90% of a day, the parrot fish eats seaweed attached to the coral reef. As a result, they will inevitably be covered with parasites on the coral reef. Like many birds such as parrots and domestic chickens, they have to “tick” in the sand, otherwise the large number of parasites will make them uncomfortable and even kill them. As a result, while eating seaweed, the parrot fish also bites the coral reef with its pointed mouth and flat teeth. Of course, coral reefs contain organic substances, which will be digested by parrot fish as their own nutrients. For a large number of hard inorganic substances, parrot fish will excrete them from the body. They exist in the form of sand. With the accumulation, a large stretch of beautiful white sandy beaches are formed. An adult large parrot fish can produce about 380 kg of sand every year.
It can be seen that the habit of parrot fish eating coral reefs is originally for their own survival-they can “tick” in the sand.
There are many races in animals that have this habit. For example, takins are animals that live in high-altitude mountainous areas. Their coats are light golden or tan, very beautiful. Takins have a habit of doing high-intensity “ticking” on the trees in the mountains and forests as long as they have free time, sometimes for more than an hour. At the same time, the takin does not forget to bite the bark to fill its stomach. High-altitude trees are dominated by coniferous forests. The bark of these pine and fir trees has poor healing ability. After the bark is destroyed, they will soon be infected by fungi, and some insects will take advantage of it. The large tracts of fir died in the year. Similarly, the takin will also climb and smash against the rhododendron trees under the forest, eating their branches and leaves, so that the thick-mouthed trees will lie down along the mountain, and then die and rot.
Takin’s unscrupulous damage to forests and breaking their own “rice bowls” is a bad habit of self-destructive prospects? But in fact, it’s not. After years of observation, scientists were surprised to find that after the firs and rhododendron trees died one after another, the arrow bamboo grew rapidly. The density of arrow bamboo is extremely high, as many as 200 trees per square meter, making the regeneration of all trees impossible! The trees that survived by chance, because of the damage to the base bark, also tend to be dwarfed and clumped, and grow into crooked “old trees”, enriching the understory vegetation, which is more conducive to takin’s feeding. In other words, due to this habit of takins, even if extreme weather occurs in a certain winter and the mountains are blocked by snow and ice, the takin population will not be destroyed due to lack of food.
God seems to have a pair of invisible hands, guiding animals to form a habit, and such a habit, everything is developing in a direction that is beneficial to itself. The same goes for people, constantly forming the habit of adapting to the times and the natural environment. This tells us that by following nature, following one’s own heart, keeping one’s nature and habits, and grasping one’s own destiny.