Why did the fleas that had wings in ancient times give up their wings?

Ancient fleas have wings, and modern fleas do not have wings, mainly due to natural selection of "natural selection, survival of the fittest"! In ancient times, fleas were larger and had wings, because such fleas were easier to survive, but in the modern environment, it is difficult for large, winged fleas to survive, so fleas abandon their large size and also give up their wings.

Modern fleas are difficult to observe directly with the naked eye, and use strong jumping power instead of flight power, so that the whole group can adapt to the environment and survive.

1. Why were ancient fleas large and winged:

In the primitive environment of the earth, the oxygen content in forests and other places is high, which makes the animals larger, and fleas generally live on the bodies of other creatures.

Ancient creatures were mainly dinosaurs and other large animals, and in order to adapt to the environment, fleas were larger than modern fleas, generally about centimeters, while modern fleas were often less than 1 mm.

In addition, ancient creatures generally did not have body hair, and creatures such as dinosaurs did not have thick body hair, so fleas could use their wings to move quickly on dinosaurs, and even fly to other dinosaurs, thus finding the most suitable place to thrive and live.

2. Why are modern fleas small and abandon their wings?

The small size of modern fleas, the ability to jump instead of wings, actually has a lot to do with the types of modern creatures.

With the development of human society, fleas have basically disappeared from the human life circle, so fleas can only survive on other animals, which are often hairy creatures such as cats, dogs, cattle and sheep.

Wings are actually very inconvenient things on the body of hairy animals, for animals with delicate hair, wings are easy to be entangled, and animals with coarse hair are easy to wear out their wings, with the reproduction of fleas, it is more and more difficult for fleas with wings to survive, but there are no wings, and fleas with strong jumping ability are easier to survive, so the gene of strong jumping power is retained.

The advent of primates has made fleas appear natural predators, and both monkeys and humans like to exterminate fleas, so fleas have become smaller and more difficult to observe, so as to avoid being detected by natural predators.

The evolution of all organisms in nature is based on the premise of the environment, animals will change and evolve according to the environment, and the genes that can survive in the new environment will be retained, and the genes that are not suitable for survival will become more and more difficult to survive and eventually be abandoned.

Fleas give up their wings in exchange for a powerful jumping ability, from a human point of view, flying is definitely more convenient, but from a flea point of view, the genes that can survive are the most important!

Because you can't have both fish and bear's paws, you have to give up your wings if you want super bouncing power (after all, it will take a while for the wings to take off, and the bounce can start at any time, probably to save your life hahahaha).

Mainly because the fleas themselves jump very high, and ordinary people can't catch them, if they grow a pair of wings, it will affect the life of the flea, so they will choose to give up their wings.

This is the result of natural selection, and fleas without wings are more likely to hibernate because fleas feed on human or animal blood, and without wings, they are more likely to hide in clothing and animal fur.

Because they are constantly evolving, they feel that wings are of no use to them, so they gradually abandon them.

In ancient times, fleas had wings because of their large bodies and wings for better survival. However, as the earth's environment changes, fleas begin to get smaller in size in order to adapt to the environment, so their wings degenerate.

This is because they feel that wings are particularly troublesome in the process of evolution, and they are not conducive to protecting themselves, so they give up.