Nominate your invertebrate species of the year

Last year readers chose the common earthworm as the Invertebrate of the year. Which species will you nominate this year? Photograph: Buiten-Beeld/Alamy

They are the unsung heroes of the planet – the silent majority, the innovators, the grafters, our overlooked friends and protectors.

Invertebrates make up the vast majority of animals on Earth – at last 1.3 million species. They are a wondrously diverse bunch, including insects, arachnids, snails, crustaceans, corals, jellyfish, sponges and echinoderms.