nerds are not genre specific
you have your star trek nerds, star wars nerds, harry potter nerds, computer nerds, biology nerds, beatles nerds, shakespear nerds etc.
In my eyes and one who knows all the starting Lakers stats is a Laker nerd. Though most of those people are just called fans
But mostly nerds are really good with the subject(s) and tend to be somewhat socially odd
Just being active on this site qualifies you well as an Animorphs nerds- at least as knowing your subject, up to you your socially aptitude.
I think one day you'll make a fine quantum mechanic/genetic/animorphs nerd yunyun.
And that's a good thing