Chitons overcome evolutionary constraints through unprecedented genomic dynamism, with extensive chromosomal rearrangements and duplications despite about 300 million years of morphological stasis.

Nudibranchs are sea slugs. They are soft-bodied animals, and like clams, snails and squid, they are mollusks. Nudibranchs belong to phylum Mollusca, class Gastropoda, order Nudibranchia.

The new genome-based phylogeny of the phylum Mollusca is consistent with the ... of one of the most evolutionarily successful groups of animals on Earth," says Professor Juan Moles, from the ...