Helen tells Stephen she was attacked by a pterosaur, but the creature whose eggs she was stealing looked more like a pterodon (assuming the names were all correct in Episode 5 of Season 1).

Abby’s flat looks different this season. Either she’s bought a lot of new furniture and they’re filming from different angles to last year, or it’s all part of the “this is a different universe” plot. And Connor seems to have inherited the giant fake cactus from Tom and Duncan’s flat. Also, Rex now seems to have adjusted to the temperature, as Caroline never complains about the heat in the flat. (Or perhaps Rexes in this universe don’t feel the cold ...)

In the previous episode, Nick wouldn’t kill the raptors for fear of changing the past. In this one, he’s hacking the worms to bits with an axe as soon as he sees them!

How does Stephen prise the lift doors open with just the tips of his fingers?

Why is Stephen all “I’m gonna die!” as the lift approaches? Why doesn’t he think about stepping onto its roof?

How did Nick get Jenny’s address? HR Departments don’t usually give them out willy-nilly.