See http://en.wikipedia.org/wiki/Kefir
Yes, Camels milk does not curdle
Bacteria in the milk can also cause it to curdle.
Yes, soy milk can curdle when heated due to its protein content.
yes it does. anything that contains acid will make the milk curdle
My best guess would be yes because plums are slightly acidic and milk will curdle with acid.
no
Tabasco contains quite a bit of vinegar so yes it will curdle milk due to the vinegar.
Yes, soy milk can curdle when mixed with acidic ingredients due to the proteins in the soy milk reacting with the acid.
no.
camel
If milk is heated it will "curdle". Then the liquid part can be removed (the whey) and what is left (the solids) can be tolerated.
most probably a camel