Hghly educational, and very entertaining. I can see why it's an Emmy winner. BTW, every dinosaur documentary has blood, so it doesn't come to much surprise. I got to admit, it has the least blood in all the dinosaur documentaries I've seen. Animation is superb. However, it was made in 1999, so some of the facts are a bit dated, but it's still good to watch.
My 3 year old and 7 year old have watched the series over and over again. They have been fascinated by dinosaurs all their lives. The series are educational, have an intriguing story and the technical effects are amazing. If you children love this they will also love the Nigel Marvin series.