‘Frankenstein’ Chinese scientists force male rats to give BIRTH while conjoined with female rodents in lab experiments
CHINESE scientists have forced male rats to give birth through Frankenstein-style experiments.
The team, from the Naval Medical University in Shanghai, constructed a rat model of male pregnancy in four steps.
The first involved joining a male and female rat by attaching their skin and sharing their blood.
The second step was transplanting a uterus from another female into the male.
Scientists then implanted embryos into both male and female rats.
The embryos were then left to develop for 21.5 days before scientists performed a Caesarean section.
After the rats gave birth, the team performed "separation surgeries" on the rats and found that all the male animals could survive three months after the operation.
Researchers said the study showed that the mice born from the experiment went on to live into adulthood and did not suffer any health issues.
However, they also found some "abnormal dead fetuses", which had "different morphology and colour compared with normal fetuses" or presented "placentas atrophy or swelling".
In their research paper, the team wrote: "For the first time, a mammalian animal model of male pregnancy was constructed by us.
"Our research reveals the possibility of normal embryonic development in male mammalian animals, and it may have a profound impact on the research of reproductive biology."
But PETA's Senior Science Policy, Advisor Emily McIvor, described the study as "vile" and criticised the research, saying animals should not be treated as "disposable objects".
She told Mail Online: "In this vile study, after being castrated and forcibly conjoined to a female rat, male rats were cut open and implanted with a uterus and embryos were inserted in them – all to establish if they could 'successfully' produce young.
"These shocking experiments are driven solely by curiosity and do nothing to further our understanding of the human reproductive system.
"Animals deserve to be respected and left in peace, not bred in laboratories, experimented on, and treated like disposable objects."
She added: "Surgically joining two sensitive rats – who endured mutilation and weeks of prolonged suffering – is unethical and in the realm of Frankenscience."
In 2019, US researchers filmed rats driving special vehicles to collect food, which could be evidence that their ability to learn tasks has been underestimated.
The experiment was created by University of Richmond neuroscientist Kelly Lambert who found that rats were much better at driving than she expected.
Lambert told New Scientist: "They learned to navigate the car in unique ways and engaged in steering patterns they had never used to eventually arrive at the reward."
The tiny rat car was created out of an empty food container, wheels, an aluminium floor and a steering wheel made of three copper bars.
The copper steering wheel created an electrical current with the aluminium interior that propelled the car forward if a trained rat pulled the left, middle, or right copper bar with its paw.
Constant rewards of Froot Loops every time the rats touched and moved the plastic car forward helped them to learn it was a good thing to do.
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