They get depressed by themselves and can cause self mutilation in extreme cases. Social animals should always be kept in groups.
You should really take a science class instead of getting your information off random wack-jobs online.
Ecuadorian Guinea Pigs: https://gringosabroad.com/cuy-guinea-pig-ecuador/ Don't visit if seeing roasted GPs offends you.
I’m sure the YouTube vids make it all sound very plausible for people gullible enough to swallow pseudo science. In the meantime every scientist with any credibility has debunked this theory for the fantasy that it is.
Most science develops and evolves, with the next best minds building on the foundations that people like Einstein made. HIAG is a conspiracy theorist though, so his agenda is to reject proven scientific theory in favour of YouTube crackpots and have-a-go charlatans trying to flog their books.
I find his love of a crackpot conspiracy to be quite bizarre tbh, as it seems so out of context for an ageing married conveyancer.
Tooth development happens in the womb, so BOTH milk teeth and adult teeth are present in the skull when you are born. Milk teeth are formed around 12 weeks into pregnancy, adult teeth about 20 weeks. To put this into perspective, here are the skulls of a 5 and 6 year old... please log in to view this image please log in to view this image
You need to put more effort into your posts and offer clarification mate, some could find it confusing