evidence: If you collect 100 black ants and 100 fire ants and put them in a glass jar nothing will happen. But if you take the jar, shake it violently and leave it on the table, the ants will start killing each other. [...] "I can't remember what all Frank had fighting in the jar that day, but I can remember other bug fights we staged later on: one stag beetle against a hundred red ants, one centipede against three spiders, red ants against black ants. They won't fight unless you keep shaking the jar. And that's what Frank was doing, shaking, shaking the jar." [...] We have not been able to find any credible sources attributing this quote to Attenborough. And while we have found plenty of videos of Attenborough talking about ants, we have not found anything specifically about red ants and black ants co-existing in a jar until someone shakes it.