|This picture is far less cute if you're a mouse|
But even this can cover a range of different strategies, or combinations of strategies, not least because there are a lot of different predators out there, and what may be good for escaping from one may be less effective against another. Moreover, if every animal evolved to avoid, say, the open grasslands in favour of forest cover, then there'd be an awful lot of potential food out there going begging. Inevitably, something would evolve to take that risk. There's always a pay-off involved.
It's as a result of things like this that there are so many species of small mammal, with subtle differences between them that are not always obvious to the casual observer. To understand the predator-prey dynamics of a particular habitat, we really need to look at a whole range of creatures. So many, perhaps, that it's beyond our ability to easily analyse in its entirety, but we can at least take a stab at a manageable group of species in one particular place, trying to see what makes them different, and why what works for some does not always work for another.