Other females exhibited a sexual display at very short distances from the nest entrance.

Peacevoice Fullerman and his men were in full armor, already forming up near her nest entrance.

The nest entrance is in the side, and is sometimes extended into a funnel.

The nest entrance is usually a low mound on the ground with the entrance surrounded by twigs and leaves.

The nest entrance is closed by the ants in the evening and reopened in the day.

The nest entrance is often so narrow that the bird struggles to get inside.

The day after they hatch, the young climb to the nest entrance and jump to the ground.

Most nest entrances were oriented to the north.

During simulated inundation, in which the nest entrances were blocked, the oxygen concentration dropped to less than 0.5% after one hour.

Many ants have soldier castes, generally of larger size, some with huge swollen heads that can block nest entrances.