I found 2 more in game keys: F4 and F7
F4 stops every animal, and you can't pull the item box, only ''you'' will move, can kill almost every dinosaur while stopped, after kill F4 again and the dinosaur falls (the small ones until now)...
F7 various clicks, and each click will change the graphics in ways you better see the scenario, like see in caves. see animals in the water.. many options with these 2 keys.. I'm playing version 0.5.2 (I think is the same for everyone) and playing single player.. don't know about online.. but maybe its the same..