The proper units for electric field would be voltage per unit length. Fortunately an electric eel has both a voltage and a length, so it could be eels per eel.
The climatic optimum you refer to was cooler than today. From the wiki you reference:
A study in 2020 estimated that the average global temperature during the warmest 200 year period of the HCO, around 6,500 years ago, was around 0.7 °C warmer than the mean for nineteenth century AD, immediately before the Industrial Revolution, and 0.3 °C cooler than the average for 2011-2019.
David Attenborough was another skeptic, but he was eventually convinced by the weight of evidence.
Perhaps we should praise them for being willing to change their minds when so few people seem able to.
Not just being able to change their minds but also to speak about it publicly. I'm sure plenty more have changed their minds but are afraid to speak up because they're afraid it will ding their popularity or cost them votes.
You are being very silly. North Africa is oriented East-West in a way that allowed it to participate in the easy exchange of flora, fauna, culture and technology with the greater East-West zone that extends from Portugal to China. Saharan Africa is dominated by the Sahara Desert, which is a huge barrier to exchange. Sub-Saharan Africa is oriented mainly North-South, in comparison with the greater Mediterranean exchange region the Diamond outlines.
North Africa is included in Diamond's Mediterranean exchange zone. And that zone extends out of Europe to the Fertile Crescent, at the very least, and arguably to India and China as well. Africa's two zones are separated by the largest and most inhospitable desert on earth. There is no advantage in having two.
That is in fact the core idea Diamond is expressing.
Domesticatable flora and fauna from a huge and ecologically diverse geographic region were easily diffused around the entire zone. The difficulty of migrating horses or sheep across the Sahara, or turkeys and llamas across the Darien Gap, is much much higher. Sub-Saharan Africa started with few large animals suitable for domestication, and importing new ones was comparably difficult.
TLDR:
transfer of 155 parthenogenetic embryos generated two live offspring. Both had body weight similar to that of controls at birth and survived to adulthood.
Seems like there are still a lot of unknowns in this process, so caution is warranted.
https://m.youtube.com/watch?v=amn3kn0XPLQ