Animals Give Virgin Birth, So Why Not Humans?
Female sharks do it, as do female komodo dragons, so is it possible for humans? Very likely yes, says Dr. Allan Pacey, a reproductive biologist at the University of Sheffield.
What's the Latest?
Fatherless pregnancies happen more frequently in nature than we once realized, enabling species to survive harsh events when males are not present to procreate. This kind of asexual reproduction among species who would otherwise have sex to procreate is called parthenogenesis. Female sharks do it, as do female komodo dragons, so is it possible for humans? Very likely yes, says Dr. Allan Pacey, a reproductive biologist at the University of Sheffield. In the lab, female stem cells have been coaxed into becoming sperm cells, though this is something that would never occur in nature.
What's the Big Idea?
While it might be possible for humans to use modern medical science to procreate asexually, it is probably a very bad idea for evolutionary reasons. Having a diverse gene pool is an important biological trick that weeds out genetic abnormalities, such as the kinds that plagued inbred European royalty for generations. "If you chose to reproduce entirely on your own, your child would only have one parent, and thus half the genetic diversity available to a normal child." In some inconceivable emergency, however, a generation or two could be sustained by asexual reproduction.
Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."
- Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
- Patients from low-income neighborhoods are most at risk of negative health impacts.
- Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
No, depression is not just a type of 'affluenza' – poor people in conflict zones are more likely candidates
- Often seen as typical of rich societies, depression is actually more prevalent in poor, conflict-ridden countries
- More than one in five Afghans is clinically depressed – a sad world record
- But are North Koreans really the world's 'fourth least depressed' people?
America isn't immune to attempts to remove books from libraries and schools, here are ten frequent targets and why you ought to go check them out.
- Even in America, books are frequently challenged and removed from schools and public libraries.
- Every year, the American Library Association puts on Banned Books Week to draw attention to this fact.
- Some of the books they include on their list of most frequently challenged are some of the greatest, most beloved, and entertaining books there are.
- Oumuamua, a quarter-mile long asteroid tumbling through space, is Hawaiian for "scout", or "the first of many".
- It was given this name because it came from another solar system.
- Some claimed 'Oumuamua was an alien technology, but there's no actual evidence for that.
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