The combination of human embryonic cells and chicken embryos to create half-human and half-chicken embryos has been sharply criticized by netizens.

A team of researchers at The Rockefeller University in New York has combined artificial human embryonic cells with chicken embryos to create half-human and half-chicken embryos in the lab, according to foreign media reports.
the experiment is known to confirm the existence of the human organizer's cells for the first time, but the way the experiment has caused a stir in the community, with many on social media criticizing the experiment as "sick," "super-disgusting" and "disgusting."
combine human stem cells with chicken embryos sounds like a nightmarish sci-fi movie.
but scientists at Rockefeller University in New York did.
the researchers hope to learn more about how cells are converted into fetuses by transplanting human stem cells into newly formed chicken embryos.
they believe the findings could lead to a range of new treatments for developmental disorders, but the experiment has led to criticism.
social media criticism was particularly acute when the experiment was announced. "It's completely sick!! " said Eric Hedean, a
Twitter user. Bernie Forthe Greater Good added: "Really.
it's something sick.
there is no excuse when there are supercomputers that can do molecular level research.
" Ashley said: 'Very scary, very disturbing! The study was led by a team led by Ali Brivanlou, a scientist at Rockefeller University in New York.
scientists have previously learned that embryonic stem cells can differentiate into any type of functional cell: from bones, brains to lungs and livers.
they also know that the specific cell populationfound in amphibians and fish embryos plays a crucial role in shaping their early developmental structures.
these tissues, known as "organizers," release molecular signals that allow cells to grow and develop in a specific way.
when an organizer transfers from one embryo to another, the "organizer" stimulates its new host to develop a central nervous system that includes the spinal cord and brain, while the organizer sits itself into tissues such as the bones of the spine.
However, because ethical guidelines limit scientists' ability to experiment with human embryos, they do not know whether similar organizer cells exist in the human body.
but the problem is to observe potential human organ cells, and scientists need to extend the time it takes to grow embryos to 15-16 days.
but subject to national ethics and laws, many countries, including the United States, have banned scientists from experimenting with human embryos that have been in development for more than 14 days, such as Massachusetts, where local law allows only embryos that can be developed within 14 days.
this is the key point where the embryo can no longer divide, and when the organizer's cells begin to form.
it is these ethical and other related issues that limit the direct use of human embryos to carry out corresponding experiments.
scientists began actively looking for similar alternatives.
to solve this problem, Dr. Brivanlou's team transplanted artificial human embryonic cells into chicken embryos.
once they were implanted in poultry hosts, these artificial stem cells began to lay the foundation for the formation of secondary spines and nervous systems, a phenomenon that clearly confirmed the existence of a true human organizer. "Once human organizers are transplanted into chicken embryos, the way they are used to guide bird cells to build the brain and nervous system is exactly the same as that used by amphibians and fish," dr.
Brivanlou said of the results.
" surprised me that this combination not only allowed the embryo to survive, but actually gave birth to such a beautiful structure.
" Cassandra Fairbanks also expressed her disgust online, writing on Twitter: "It's not good.
scientists need to be calm.
they are making human/chicken hybrid embryos.
" the study is published in the latest issue of the journal Nature.
Source: NetEase Technology.