Invertebrates – animals without spines – make up the vast majority of life on Earth. The Guardian’s invertebrate of the year contest celebrates the unsung heroes of the planet. Readers have nominated thousands of amazing animals, we’ve chosen a shortlist of 10, and now you can vote for your favourite. 1. The tongue-biting louse burrows in through a fish’s gills, clings to its tongue and eats what the fish eats. 2. The dark-edged bee-fly pretends to be a bee but is actually a fly that twerks. 3. Multisegmented micro-animal Milnesium tardigradum has survived five great extinction events. 4. The flamboyant