Humans spread both far and wide
And carry others on the ride.
From pole to pole and all around
The Earth’s equator they are found.
Continents are crossed by herds,
The globe is spanned by flights of birds.
A humble fungus does the same,
Grabs all the range that it can claim.
Mushrooms follow this convention:
Move one hand breadth each generation.
by Kate Rauner