Re-order paragraphs

d) It's often said that ants can predict impending rain and respond by changing their behaviour.

a) Some people say that if you see ants building their mounds higher, or building them from different materials, this might signal the coming of rain.

c) But is there any scientific evidence to support this piece of folk wisdom?

b) The short answer is "no", although it is a difficult question to answer partly because of the sheer diversity of ants - there are 13,000 named species on the planet!