Taking it on all fours

1 min 34 secs

10 mins 29 secs

51 secs

55 secs

13 mins 22 secs

34 secs

50 secs

17 mins 12 secs

5 mins 52 secs

3 mins 21 secs

1 min 36 secs

1 min 32 secs

4 secs

20 secs

2 mins 13 secs

42 secs

12 mins 31 secs

17 mins 29 secs

12 mins 19 secs

23 mins 3 secs

11 mins 13 secs

7 mins 29 secs

35 secs

5 mins 25 secs

45 secs

4 mins 8 secs

1 min 7 secs

2 mins 4 secs

1 min 14 secs

1 min 44 secs

5 mins 2 secs

3 mins 50 secs

1 min 24 secs

2 mins 4 secs

43 secs

5 mins 51 secs

5 mins 20 secs

6 mins 34 secs

8 mins 37 secs

11 mins 19 secs