on all fours (adverb)

1. In the horror novel, the character crawled on all fours through the dark tunnel.

2. In the movie, the villain crept silently on all fours towards the unsuspecting victim.

3. The mythical creature moved gracefully on all fours, blending in with the magical forest.

4. As they played with their pet dog, they found themselves chasing it playfully on all fours.