They are learning. They have evolved and they are learning and if this is any indication to go by, we're all buggered as a species.
And all because one lioness decided she didn't want her picture taken. Imagine what would happen if they were properly pissed off.
This is like watching a found-footage version of Jurassic Park but a whole lot scarier because of the fact that lions are real and fully capable of tearing your face and/or limbs off, as opposed to CGI dinosaurs.
Also, lock your God damn doors people.