“Who cleaned up the Brachiosaurus’ poop”
Um, they took babies dude! Shem, Ham, & Japheth cleaned up the poop. Noah probably did his fair share too. Mrs Noah was probably coralled to do some work too. & Mrs Shem, Ham & Japheth of course
They may have been babies for a few weeks, but the rate of growth would have made them as large as or larger than Sherman tanks in the several months they where isolated in there.