In "Ender's Game", what is the "oddest" thing about the way the Buggers communicated? How did Mazer Rackham and Ender use this to their advantage?
In "Ender's Game," Ender and Rackham learned that the Buggers communicated from mind to mind. "The buggers don't talk. The think to each other, and it's instataneously like the philotic effect." They have a hive mind like the "Borg" on "Star Trek". Each ship is like an individual organism. They don't have to think one thing and then repy mentally either. All of them can be heard at one time. If they could kill the "queen" they could win the war. Ender and his captains would have to somehow get close enough to the Queen to destroy her. That would end the war.
To summarize, it means that their minds are one.
The Buggers are not individuals in the way you and I are individuals. They are colonial organisms, rather like volvox. What the humans saw as a single bugger was more like a body part of a bugger. They have hive mind mentality. Only the central minds (The Queens) actually possess any rational thought. The others are merely like extra limbs and fingers. Rackham unintentionally used this to his advantage in the 2nd Bugger war when he killed the Queen. For Ender, its a matter of figuring out who the Queen is and destroying her.