It seems like in contemporary filmed narrative nobody understands anymore the concept of proceeding in chronological order. This is supposed to be a documentary about the evolution and extinction of life on Earth, what's wrong with proceeding from the "start", 4 billion years ago and moving forward?
Apparently a lot, because the first episode starts 2 million years ago with a couple of feline predators stalking a huge bird, then jumps forward to the present day, then back again, then there's an interlude about caterpillars and then we're back to the felines jumping on the bird, only to be told that the series will be about life on Earth and how 99% of living species went extinct, mentioning inevitably the dinosaurs - but again showing them at the very beginning, with the hatching of their eggs and at the end, at the time of the asteroid's collision, therefore jumping back and forward a "mere" 150 million years.
Why oh why? The animated CGI creatures looks good enough to me and Freeman's narration is OK, it's just the structure that is extremely off-putting.