One interesting thing is that progress very much happens by fits and starts, as it waits for the "lucky mutation" that will enable evolution to continue.
For example,
0 Bedaaa Ceeici 6.07
1 Bocodo Bidobo 105.93
3 Aibebe Docoeo 107.74
7 Diaebe Eocoeu 107.88
10 Ciaabe Eocoeo 107.95
25 Diaebe Facodu 108.19
28 Biaebe Eocoeo 108.20
30 Biaeae Eacoeo 108.47
35 Beaebi Fucieo 109.88
36 Biaebi Eucici 203.60
42 Biaibi Fuceci 204.65
45 Aiaibi Fuceeo 206.30
47 Aiaibi Fucici 206.60
48 Aeaebe Eoceeo 412.96
56 Beaebe Euceeo 414.05
59 Beaebi Fubiei 415.76
73 Beaebi Focieu 519.01
75 Beaebi Eocido 519.39
96 Baaebi Gidido 521.00
99 Baaebe Focedo 627.14
There are pretty massive jumps at generation 36, 48, 73 and 99.By the way, this is at 50% mutation probability and 25% mutation amount. It got stuck way earlier with large less frequent mutations (as one would expect, if the probability of a beneficial mutation occurring is the limiting factor).