Anyway, she had got obvious ones like high milk yield, able to live on little water etc. So I said "able to run fast", she asked "why", so I replied "so the lions can't catch them" - she was suitably amused, but put it down anyway, with a sidenote that it was her fathers idea.
The teacher loved it!, and she got an extra mark for it!
This reminded me of a South African joke.
Two men being chased by a lion.
The first guy says, 'we will never out run a lion'
The second guy says, ' I dont have too, I've just got to out run you' !