Molecular classification of placentals
17 years ago
http://en.wikipedia.org/wiki/Mammal....._of_placentals
I'm dumbstruck.
Human is more related to rat, than to pig, since both fall into Group III - Euarchantoglires, while pig is in Group IV - Laurasiatheria.
But that can be believed... What's really fascinating is this:
"In the initial molecular analyses, whales were shown to be more closely related to ruminants (such as cattle and deer) than ruminants are to pigs." (read the thing for an explination)
Appears that hippos are far more related to whales than to pigs...
Worst of all -- all of it makes perfect sense.
[edit]P.S.: Here's how deep human is in the taxonomy (I hope i didn't overlook anything):
Gaeabionta -> Cytota -> Neomura -> Eukaryota -> Unikonta -> Opisthokonta -> Animalia -> Eumetozoa -> Bilateria -> Deuterostomia -> Chordata -> Vertebrata -> Gnathostomata -> Tetrapoda -> Amniota -> Mammalia -> Boreoeutheria -> Euarchatoglires -> Eauarchonta -> Primates -> Haplorrhini -> Simiiformes -> Catarrhini -> Hominoidea -> Hominidae -> Homininae -> Hominini -> Homo -> Homo sapiens sapiens.
I'm dumbstruck.
Human is more related to rat, than to pig, since both fall into Group III - Euarchantoglires, while pig is in Group IV - Laurasiatheria.
But that can be believed... What's really fascinating is this:
"In the initial molecular analyses, whales were shown to be more closely related to ruminants (such as cattle and deer) than ruminants are to pigs." (read the thing for an explination)
Appears that hippos are far more related to whales than to pigs...
Worst of all -- all of it makes perfect sense.
[edit]P.S.: Here's how deep human is in the taxonomy (I hope i didn't overlook anything):
Gaeabionta -> Cytota -> Neomura -> Eukaryota -> Unikonta -> Opisthokonta -> Animalia -> Eumetozoa -> Bilateria -> Deuterostomia -> Chordata -> Vertebrata -> Gnathostomata -> Tetrapoda -> Amniota -> Mammalia -> Boreoeutheria -> Euarchatoglires -> Eauarchonta -> Primates -> Haplorrhini -> Simiiformes -> Catarrhini -> Hominoidea -> Hominidae -> Homininae -> Hominini -> Homo -> Homo sapiens sapiens.
i agree in your views on medicine. it contains the tiniest gap between incredibly helpful and incredibly destructive. personally, my favorite concept, due to how close we actually are to this, is genetically-related eugenics. forget skin color discrimination, it'll be about how superior your genetic make-up is. have you ever seen the movie Gattaca? it revolves around this idea. it's one of my favorite movies |D
The problems medicine "solves" don't go away, they just accumulate; all it does is hide constructional flaws long enought for them to be passed on. And then again and again...
When it comes to DNA it might just cause more problems than it solves. It's a complex system with way too many workarounds that can be exploited for business purposes. Business and consumerism is where the sad stuff starts happening...
Speaking of business and genetics, I'm wondering if you're aware of sites like https://www.23andme.com/ 1000 dollars for a giant list of things you can maybe, possibly die from? Seems like a huge waste to me, but so many people are actually doing it. There are very few genetic tests that can fully predict which genetic diseases you have. Soon enough it will cost much less than $1000, and everyone will be aware of certain faults they may have given they choose to take such a test. Oh gosh, I'm going to get on a rant again. I have to get to class!
Problem is... do you know anyone who'd choose to die, just because s/he got flu? -- There's no way of getting out of this mess.
Thanks for the links, btw.
The first one is the stuff nightmares are made of.
The 2nd one made my day. :D
The scary thing is, there are about 3 other sites that do the exact same thing as 23 and me. I have an article about it at home I should scan for you.
I hope you enjoyed the spider goats :>
I lack a solid foundation (as well as the English/Latin scientific vocabulary...) to evaluate the classification procedures or how large the shift in relatedness is, but this doesn't really strike me as all that surprising - at least the ruminant/whale/pig thing. A lot of critical re-evaluations has taken place in recent years (I think), and molecular biology is rarely straightforward. Our perception of relatedness is skewered by obvious similarities like habitat, appearance etc. and ignores "deeper" similarities. I'm sure we'll be in for plenty of other surprises as methods improve.
In human-to-human organ transplants, organs deemed "unusable" have diseases in them (hepatitis, etc).
So, they want perfectly usable organs. Also, a perfect organ can be replicated with stem cells. They wouldn't want to replicate a non-clean organ.
I also wasn't thinking of stem cell replication and hence wondered why the organs obtained would need to be "cleaner" than the ones you usually transplant. Thank you!
Oh man, I didn't know many people really took a look at it. Sorry, I was scrolling to the bottom of the page and the bold just stuck out like that XDD
It was horrifying in the sense that farm animals were bred/created to be what they only needed to survive by to maximize production of their meat. Like what the chickens became. Buh, blob of flesh in a bottle, that was so f-ed up.
And then there were the perfect humanoid creatures that the main character frequented. And the Wolfogs.
This is just my input on it, though I'm sure there are furries here more well-versed in molecular biology than I am. In any case, it does make fine material for furry sci-fic. ^_^
Then there's the difference between taxonomy and phylogeny... I guess I ment phylogenic relatedness. That's what i'm most interested in anyways, since it explains how life works and evolves more directly.
Basicly those DNA analysis have changed the way life is classified. Earlier taxonomies relied heavily on morphology, now it's possible to analyze relations between animals by theyr chemical mechanisms at DNA level. That's a less error-prone level to work at.
I'm rubbish at explaining, sorry.
With all the animals on earth and what we know of the genetic makeup of each and every one, I doubt we (as a species) know more than a fraction of a percent of the subject. In fifty years time, that genetic could be different.