Why predation constitutes most of our world!!!

On the surface of the water float peacefully some green algae quietly attend her dinner of sugars in the light of sunlight, but unfortunately you will not enjoy it.

One of the marine plankton attracted the smell, as soon as he ate his breakfast, the sea waves were thrown away to find himself in the mouth of a small prawn, which quickly dipped to the depths to escape the sharp currents on the surface ..

As he reaches a quiet place among the coral reefs, sharp claws of the crab are released and picked up, the crab moves to the beach looking for a female to mate, but a small seal lost its swarm was hungry until, devouring the crab and descending to the water looking for its companions.

A sharp squeaking deep down, it is the largest predator a group of powerful orca whales, one of them devours a small seal and runs off, but it cannot sail far away, there is a fiercer predator in the vicinity!

The spears of a fisherman hit him above the boat. The fishermen make a great effort to lift him on the boat, cheering for their precious fishing and rushing towards the port, but one of them will not arrive, a small predator tore his lung from the inside, he was infected with TB bacteria!

Why does life look so brutal? Why predation occupies this strong position in the world of the living? Why was life not a collection of organisms that produce food from solar or chemical energy, for example?

Those questions led me to search for the origin of predation (including parasitism) and the consequences of its emergence, and it appears that the mystery covers that spot from the living world, we do not have any conclusive evidence for the time of the origin of predation, but I will try to reach the nearest point to the first predation incident on our planet Then, we move on to understand how predation shaped our world.

We can shorten the road by eliminating all the huge predators, predation arose at the microscopic scale at the beginning, scientists found at least 10 decades ago a fossil of amoeba with an external shield (which is in response to the presence of predators) and was dated to 740 million years ago that is before the emergence of any large animals, it is The oldest we have but it is not the oldest.

Only by studying the most primitive creatures on our planet (bacteria) we can observe predatory behavior, and we know that prokaryotes are the first creatures to emerge, that is, 3.5 billion years ago ... predation arose in a near period.

The first predator may be as old as life on Earth, but it certainly was not the first. The first being who would not find it to prey was the first being probably a product that made its food out of chemical energy or that it was unproductive, but it simply absorbed the organic compounds left by the young earth During the period of its ups and downs, and the first predator most likely took some time to develop his weapon that would befall his prey, and now let's start investigating the nature of a pre-crime society.

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