Carol is the marine biologist in the family.  She actually
contemplated it as a major until she found out you needed a PhD to be
qualified enough to just barely not starved to death.

So when I see something interesting, I wait until we surface and ask.
She'll usually give me the Latin and common names and a buch of stuff
that goes in one and out the opposite.

Well, one dive in CZM, we were on the boat with a bunch of newbies and
one asked about a particular fish.  Carol spouts off "that was a male
corpus cavernosum.  They are usually about 6 inches long, although
I've seen them up to 10 and have heard of some as long as 14."  At
which point our doctor friend broke up laughing, but didn't tell
anybody on the boat.