While B.D. Wong's Dr. Henry Wu found his way back to Isla Nublar for "Jurassic World," there's still no sign of Dr. Alan Grant, who hasn't been seen since the events of 2001's "Jurassic Park III." Actor Sam Neill has a pretty good idea why that is.

Talking with the ShortList to promote his latest film "Hunt for the Wilderpeople," Neill theorizes suggests Dr. Grant has given up the world of paleontology after repeated encounters with cloned dinosaurs.

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"I think the problem is, no one knows where Alan Grant is anymore," he said in response to a question about returning for "Jurassic World 2." "He's retired from paleontology, he's sick to death of dinosaurs and running. He's not quite as fleet of foot as he was, and he's now retired to Dayton, Ohio, and has a very successful accountancy business."

And then Neill turned a bit dark: "I think that's what's happened to Alan -- that, or he's dead." He shrugged off the notion that Alan might have gone into years of therapy to address dinosaur-induced trauma, saying, "How do you recover from all of that stuff? I don't think there are therapists that are trained to deal with kind of post-dino stuff."

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Asked whether he might consider a role in "Jurassic World 2," Neill replied, "The call hasn't come, and no one can find Grant. He's disappeared."

Directed by J.A. Bayona, the "Jurassic World" sequel stars Chris Pratt and Bryce Dallas Howard. The film is set to arrive in 2018.