How would you protect yourself when you are facing danger? There is a species of ant in Malaysia that would explode itself to attack the others!
Its binomial name is Camponotus saundersi. These types of ants have gigantic glands which contain toxic gases. When they are harmed or threatened, they would wait till their enemies to arrive and then explode themselves! Although the power of explosion is not strong enough to kill their enemies, but this would spray the toxic chemicals onto the enemies.
Of course, this explosion is going to kill themselves, therefore they won't explode unless really necessary!
Source: https://en.wikipedia.org/wiki/Camponotus_saundersi
http://imgur.com/gRRabLM
Follow me for more interesting trivia!