Their genes show that these species are essentially a mass of identical twins, with no diversity at all.
(Their genes; show; that these species are essentially a mass of identical twins, with no diversity at all) Context(Their genes show,List([0, 16))):(these species; are essentially; a mass of identical twins)
Their genes show,List([0, 16))
Their genes these species
show are essentially
that these species are essentially a mass of identical twins, with no diversity at all
a mass of identical twins