One of the best things about becoming a parent is getting to dress your kids up as chest-bursting, brain-devouring zombies (or, provided you've raised them as good little Browncoats and Whovians, getting to see them choose an awesome costume all on their own).

Nerd Babies — which over the weekend became one of my new favorites Tumblrs — captures the essence of pint-sized geekery in all its glory, including some ridiculously adorable cosplay (we've picked out a few choice examples). Kick off your week with a hefty serving of d'aaaw.

Zombaby, via mindlessnate

Via styleobsessed

Via invisiblebee

Via thefrogman

Via itsallhappening

Via drearysortofdreary

Many, many more photos over on Nerd Babies.