“Bulky” is a weird prompt. What’s bulky? Oh, Dinosaurs are bulky! And the sauropod dinosaurs are perhaps the bulkiest of them all!
So have a diplodocus. Or a brachiosaur. Or an apatosaurus. Or a brontosaurus. I dunno, it’s one of those.
And yes, the brontosaurus is a distinct species from the apatosaurus! Or, at least, re-classification in the 21st century has deemed it so. It turns out that the archaeologists who disputed whether or not the brontosaur and the apatosaur were different creatures were scientific rivals, and basically just wanted to discredit each other. But, now that they’re both long dead, people who just want accuracy rather than notoriety are able to make clear-headed decisions, and the consensus as of now is that there are two distinct genera, and both the apatosaurus and the brontosaurus are actual dinosaurs.
So there you go, there’s some science with your weekend ink drawings.