Nature's most "weird" penis: The penis gets longer when male ducks are together! At this time, the male duck can grow reproductive organs up to more than ten centimeters long, and violently reproduce the female duck......
(Source: "Nature's Most "Wonderful" Penis: Penis Grows Longer When Male Ducks Coexist" - Sina Science & Technology 2017-11-07)
There are many animals in the amazing natural world, and each animal has a unique way of reproduction, which is also the continuation of life of animals.
Ducks are poultry animals and love to play in the water.
Wild ducks can also be found in large lakes and reservoirs, and ducks are considered to be very docile animals.
But the breeding process of ducks is known as the most despicable ......
Because male ducks grow spiral-shaped breeders and are also the most cruel in the process of mating.
In a study on the evolution of the genitals of ducks, many people have attracted a lot of attention to the duck as an animal.
Because people have learned about it, it has been found that ducks do mate differently from other animals.
After spring, it is time for the male ducks to mate.
At this time, the male duck will choose the appropriate way to mate with the female duck, but this process has some forced implications.
Male ducks during the breeding period are somewhat competitive, as only the strongest male ducks are favored by females.
Therefore, when a male duck mates with a female duck, it usually competes with other male ducks.
At this time, the male duck, who usually looks very docile, will become extremely fierce and brave.
And he bit it hard with his mouth, and he looked extremely brave.
After the competition, the male duck will mate with the female duck.
In the process of mating, there may be cases where the female duck is suppressed and bitten.
Therefore, the mating of male ducks and female ducks is known as the most forced mating behavior.
Many people can't believe that ducks, who have always been docile, can carry out such forced mating behavior.
However, this is also a unique way of mating and reproducing ducks, and ducks usually mate for only a few seconds.
And the success rate of this forced mating is not high, but this is also the way the duck wants to reproduce, and it is a true portrayal.
Female ducks do not produce 100% fertile eggs after being forcibly mated by males.
Because the body structure of the female duck is relatively special, the female duck has a long reproductive tract.
This particular reproductive tract is tortuous and long, so it can stop the mother duck from unwanted sperm.
Therefore, it is not that the male duck will be successful after forced mating, and the female duck has the right to select and leave high-quality sperm for reproduction.
Before the male ducks were forced to breed, they were already fighting with other male ducks.
Therefore, the male ducks that can win are generally more capable, and the reproductive ability of these male ducks is also relatively strong.
The strong mating of male ducks makes the female duck almost unable to resist, but the female duck can choose the right sperm for fertilization, which is also a very magical thing in duck mating.
The way of mating in the animal kingdom is different, so each animal has its own unique way of mating.
Most of the animals are females responsible for reproduction, but the seahorse is a very special animal.
Seahorses live in the ocean, and they are "monogamous".
A seahorse will only have one lover in its life, and the seahorse is the male responsible for giving birth to the baby.
Therefore, it also subverts people's imagination, and they all think that male animals are not responsible for giving birth.
But seahorses are special, and male seahorses can give birth to many calves at a time.
Penguins are even more magical, as after the male and female penguins mate, the female penguins go back to lay eggs.
But after the eggs are laid, the incubation is done by the males.
Male penguins do not eat or drink after they start incubating their eggs, because they cannot leave the eggs they are about to hatch.
At this time, the female penguins will go out to find food to replenish their nutrition, and the male penguins will start eating when the baby penguins hatch.
This has to feel the wonder of nature, each animal has its own unique way of reproduction.
