At the end of the semester in the advanced invertebrate zoology course I took, my rather dry, boring professor made the only joke I remember him ever uttering. We had just finished the phylum ...

Lamarck was the first to propose an evolutionary conversion from an invertebrate to a vertebrate. In 1809, he depicted a phylogenetic tree, including an invertebrate-to-vertebrate transition in ...

Spanning a large range of taxa from insects, molluscs, and crustaceans to annelids, cnidarians, and beyond, invertebrates make up the vast majority of Earth's biodiversity - yet their genomes ...