I felt kind of bad about the blog post I wrote last night. I tried at the time to keep myself upbeat, but as I just read back through it, it's pretty depressing. As such, I've decided to post about some fascinating facts relating to reproductive anatomy and physiology, which is coincidentally exactly what I am studying at the moment! Here goes:
1) As per this blog title, female kangaroos do in fact have paired lateral vaginae, which is kind of a fancy way of saying that they have two vaginas. Lucky them?
2) The fibroelastic penis of the boar (male pig) looks just like an earthworm.
3) Bighorn sheep rams actually spend much of the year in bachelor herds, where they practice almost exclusively homosexual behaviour. In fact, females frequently have to mimic the behaviours of rams just to get the males interested in copulation. Also, around 10% of animals are "gay". Take that, extreme right!
4) Female hyenas are masculinized in utero, and as such they develop an elongated clitoris known as a pseudopenis. They actually do have to give birth through it, and as a result, ten percent of first-time mothers die during labour, as do around 50% of cubs. All I can say is yikes.
5) The mammary glands of dairy cows can weigh up to 60 kg.
I think that will do for now. Fascinating stuff, isn't it? Obviously, I've tried to include some of the more entertaining bits and bobs while avoiding the drier material...not that I'm sure all of you aren't desperate to learn all about histological features of the seminiferous epithelium, or the role of non-clustered hox genes in limb and organ development.
You're welcome. ;-)
EDIT: Because I am totally neurotic, I was humiliated to note that I had typed "fibrocartilaginous" instead of "fibroelastic" as a descriptor for the boar's penis. I hope I can be forgiven in light of the frequency that the word "fibrocartilage" comes up when studying anatomy. I am, nonetheless, embarrassed. *shame spiral*
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