There are various methods, from the complicated and expensive, such as the analysis of the sex chromosomes and the use of instruments to see the gonads through the intestines, to the simplest: the discernment of features of color or shape of the wings , which they are linked to sex in some races. Another universal and very reliable system is the detection of certain anatomical details of the cloaca, the conduit where the genital and urinary apparatus of hen chicks converge. Only after months of selfless observation and after disturbing thousands of chicks do you acquire the expertise to detect such differences. The sexing expert, a profession created in Japan in the 1920s, has a 99.9% hit rate.
How do you know the sex of chickens?
Oldest Known Neanderthal Family Discovered
They have identified the remains of a father, his teenage daughter and two 59,000-year-old relatives in a cave in Russia thanks to DNA.
Are we subjected by our genes?
Are we what we are because of our genes or because of the environment in which we have been raised? This question generates a heated debate among scientists, the answer to which is often highly politically charged.
Metahumans exist and are among us
There are people who, despite being genetically programmed to get sick due to a mutation in one of their genes, do not show symptoms or get sick.
Why do sea dragons look so weird?
They appear to be adorned with leaves, they have no ribs or teeth, and their spines are twisted. The reason for its appearance could be the lack of some genes.
This is how little separates us (genetically) from chimpanzees
The human genome has one chromosome less than that of the great apes, chimpanzees, orangutans and gorillas: they have 24 pairs and we have 23.