| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| when did animals evolve | 0.8 | 0.6 | 1656 | 98 | 23 |
| when | 0.06 | 0.9 | 6094 | 88 | 4 |
| did | 2 | 1 | 1149 | 69 | 3 |
| animals | 0.37 | 0.5 | 6497 | 38 | 7 |
| evolve | 1.52 | 0.7 | 1830 | 90 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| when did animals evolve | 0.65 | 0.3 | 1900 | 99 |
| when did animals evolve to become landborne | 0.21 | 0.9 | 2943 | 83 |
| why do animals evolve to have horns | 0.68 | 0.5 | 7120 | 36 |
| reflex arcs have evolved in animals why | 1.35 | 0.1 | 9579 | 66 |
| did whales evolve from land animals | 1.27 | 0.9 | 4750 | 68 |
| when did animals first evolve | 1.57 | 0.3 | 7205 | 40 |
| when did the first land animals evolve | 1.97 | 0.7 | 8956 | 84 |
| when did the first animals evolved | 1.64 | 0.4 | 3331 | 41 |
| when did land animals evolve | 1.36 | 0.7 | 7862 | 52 |
| when did warm blooded animals evolve | 1.96 | 0.3 | 4591 | 21 |
| when did the earliest land animals evolve | 0.45 | 1 | 9538 | 43 |
| when did animals move to land | 1.82 | 1 | 2289 | 81 |
| evolution of land animals | 1.93 | 1 | 8803 | 96 |
