through beside behind
At   one point, the ant had to cross a crack about 10mm wide.After some 23 short  thoughts, the ant laid the feather over the crack, walked 24 [MASK]  it and picked the feather up on the other side, then continued on its way.I was 25 attracted  by the cleverness of this ant.It was only a small insect, lacking in 26 size  yet equipped with a brain to reason, explore, discover and overcome.27 But  this ant, like the other two-legged creatures 28 living on the earth, also shares human failings.