I've been doing a lot of research on milk and think a milk thread would be interesting

How do anteaters breastfeed? It's a good question, right? They have no lips. Well apparently they can just squeeze the milk out and lick it up.

Well surely anteater milk has to be thick? If it's too watery then it would leak everywhere. It seems their milk is slightly fattier which might indicate a thicker consistency.

On the contrary, kangaroos don't even have nipples. Their milk actually changes from watery to custard-like as the joey develops. So maybe consistency isn't important for anteaters either.

Whales have weird inverted nipples, and they squirt their ultra rich toothpaste consistency milk into the little whale's mouth. I found this surprising because you'd think they'd accidentally ingest a lot of sea water this way.

Human milk is surprisingly sweet. This makes sense because we need the energy for brain development. I almost wonder if it's a reminant of our fruigivore ancestors. It's also quite watery, unsurprisingly perhaps, we do sweat a lot.

Dayak fruit bats males can actually produce milk. Although they've not been documented breast feeding, they apparently have fully developed mammaries and produce milk. I don't really understand how the latter got discovered before the former.

Typically males don't produce milk because we lack progesterone and our mammaries are underdeveloped for it anyways. Doves don't produce 'milk' exactly but they secrete 'crop milk' to feed their hatchling and that both male and female birds do it. I find it surprising that there has been zero evolutionary adaptations or pressure for mammalian males to retain their mammaries and produce milk too.

Please share your thoughts and any facts you may have.

My question for you, is what milk from the animal kingdom would you like to try? I'd like Reindeer.
(I'll allow non-mammalian exceptions if it's a secretion used for child rearing, e.g cockroach milk.)