The insects do a lot for their survival they could fight to any other being for their sway. Have a look at the following videos that present various activities undertaken by ants.
Video # 1
Ants Fight Centipede
Incredible video of ants attacking a centipede and carry it off the place.
Video # 2
Giant Spider Vs Ants
This is crazy spider had to run finally.
Video # 3
City of Ants
The city of ants has been amazingly discovered by national geographic
Video # 4
What A Escape plan.