Wednesday's DNA doodles. The theme is sex (sort of)

Continuing on with the doodle week (sorry for the no show yesterday, but I had a Canada Passport emergency going on on top of the workshop stuff), I've put up two pics which illustrate one of the common themes applied, when a student is asked: "Draw me a picture with DNA in it."

That theme, of course, is sex. (or at least a science geek version of it).

i-532deb52cd969e03dea49185f618ff72-cross1.jpg

And here's another:

i-47015925b52965fb5184fdfee78e65bd-cross2.jpg

It's worth pointing out, that if we were to look at the 600 or so doodles that I have scientifically, the rabbit is one of the organisms that comes up an awful lot. But most surprisingly, the most drawn animal (not including self portraits) is the pig. What's up with that?

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Are you sure the pig pictures are not also self-portraits, or portraits?