Euclid isn't the only one who's seen beauty bare

A package came yesterday from Fearless Leader, with one present from her and another from sho_sunaga. It may well represent the aesthetic highpoint of my year.
( Cut for elegance beyond imagination )

Bull

Ah. Hm. An interesting point. Here it is (almost) the year of the ox (go me) and I'm not sure what an ox is. Wikipedia says it's a castrated bull. (Wikipedia also tells me what a freemartin is, which is something I'd never heard of. It also says that an aurochs is an extinct kind of cattle, when I'd always assumed it was some sort of deer. Live and learn.)
( Cut for 'satiable curiosity )