legion

sympatric speciation makes no sense
for lake Nyassa's cichlid repertoire
were it one pool, gene-mixing's too intense
what's now one lake was myriad before
each drought estranged genes in the sundry ponds
where local challenges chose fittest traits
without invoking any magic wands
constraining fishy choices of a mate
wet years now bridged the archipelago
and reunited cousins to compete
most cycles, net diversity will grow
'though most are merely something new to eat
hydrology's retold in fins and scales
for those with eyes to read the fishes' tales