Dying ants broadcast a chemical “end me” signal that triggers swift sacrifice, protecting the colony from deadly infections.

Cocooned ants infected with a deadly fungus call on workers to kill them to protect the colony—the first example of altruistic disease signaling in social insects.

Ant colonies act as one "super-organism" which works to ensure the survival of all, according to a team of scientists.

Sick young ants release a smell to tell worker ants to destroy them to protect the colony from infection, scientists said ...