Edgar Allen Poe Reference
When the "shadowy figure" kidnapped the dodo, it seemed to be a clear reference to Murders in the Rue Morgue with an ape dressed as a man committing crimes and leaping across the rooftops. Then later, Darwin's house collapses just like The Fall of the House of Usher. Thought these were pretty cool touches.
Did anyone notice any others?
"Weirdness was all he cared about. Weirdness and sex and plenty to drink."