Starved of cash, North Korea is drawn to other pariahs for business even selling tunnelling advice to Myanmar's junta, another bunch of totalitarian troglodytes.

ECONOMIST: Banyan

African great apes such as bonobos (Pan paniscus) and chimpanzees (Pan troglodytes) are known to use head gestures such as nodding, bowing and shaking to communicate with other group members.

BBC: Earth News - Bonobo chimps filmed shaking their head to 'say no'

In fact, the president can afford to cross swords with the GOP troglodytes, but what he can't afford is to alienate his own Democratic party base, which has overwhelmingly rejected the war.

BBC: US in Afghanistan failure warning