Sorry if this has been posted before but this video was amazingly beautiful. https://www.youtube.com/watch?v=0qdn-sHsIzE&feature=fvst "When the fungus is ready to sporulate, the mycelia grow into the ant’s brain. The fungus then produces chemicals which act on the host’s brain and alter its perception of pheromones. This causes the ant to climb a plant and, upon reaching the top, to clamp its mandibles around a leaf or leaf stem, thus securing it firmly to what will be its final resting place."
https://www.youtube.com/watch?v=scPOQC_Lpgo"]YouTube - Cordyceps Fungi - BBC Planet Earth HD Its been posted a few times, never gets old though..