Mavericks are well known transposons (https://en.wikipedia.org/wiki/Polinton https://en.wikipedia.org/wiki/Polinton), and as other transposons suspected since l

Mavericks are well known transposons (https://en.wikipedia.org/wiki/Polinton https://en.wikipedia.org/wiki/Polinton), and as other transposons suspected since long ago to jump between species: things like fragments of DNA in specie A very similar to specie B embedded in a transposon sequence, while specie A and B diverged long ago. The novelty of this paper is the authors actually found the transposons jumping and carrying info between species.