Taking it on all fours

2 mins 29 secs

1 min 22 secs

3 mins 10 secs

1 min 53 secs

1 min 1 sec

4 mins 20 secs

2 mins 46 secs

2 mins 51 secs

32 secs

26 secs

1 min 24 secs

25 secs

51 secs

16 secs

18 mins 35 secs

1 min 17 secs

47 secs

4 mins 40 secs

4 mins 39 secs

26 secs

31 secs

30 secs

27 secs

34 secs

45 secs

36 secs

23 mins 3 secs

40 secs

27 secs

6 mins 58 secs

34 secs

16 secs

4 mins 6 secs

8 mins 31 secs

12 mins 41 secs

9 secs

13 secs

42 secs

2 mins 51 secs

2 secs