“ The ochre sands stretch for miles around. Something kicks up the dust. It's a yak. A desert-yak. It ambles slowly, nuzzling the ground for the low-growing shrubs. The ranger freezes. 'Stay very still,' he warns. 'Don't move at all.'
'What is it?' you ask, breathlessly.
'It's the most dangerous creature in the whole Ocadian desert. And it's about to eat that yak...'”
“ On a planet with an ammonia atmosphere, that is inhabited by intelligent aliens, the police carry oxygen spray, that has the same effect on that planet that pepper spray does here.”