It’s all about the dinosaurs. Indirectly.
It was on this day, (fictitious) August 18, in the early years of the 20th century that the bearded dynamo, Professor Challenger (perhaps the third most famous protagonist created by Sir Arthur Conan Doyle, behind a certain famous detective and his doctor friend) first discovered The Lost World atop a high plateau in the middle of the Amazon rain forest. And what did he find there? Actually, all manner of ridiculous things, but chief among them – DINOSAURS! Most of them did not want to be friends.
Coincidentally, (fictitious) August 18 is also the day that the devious Dennis Nedry sabotaged the computer system at the newly-created, island theme park, Jurassic Park (in Jurassic Park the novel, not the movie – August apparently wasn’t Hollywood enough so they changed it to June), leading to the escape of several of the park’s residents – which would happen to be DINOSAURS! Most of them didn’t want to be friends either.
It turns out, dinosaurs, at least the meat-eaters, not terribly nice.
So, avoid any remote islands or isolated rain forest plateaus that might attract or harbor otherwise extinct animals today. There are much easier ways to get your hands on dinosaurs anyway. Like in books. Now, if I only knew where you could go for those…