Which group of animals is over 90% of the animal life forms on Earth?

for some reason this bugs me.

I think that there's many, many thousands of insects which we have yet to discover

knew this from a TV program, with David Attenborough! thanks Sir David

Adventures Among Ants:. an interesting and hilarious read! Do borrow from library!

normally, the mass/biomass is what is used for this comparison. Number of species is of interest but should be said in question. I know ants make up a lot of terrestrial biomass (previous question here)

Insects are animals?

Jo C, animal, vegetable or mineral...

Wouldn't bacteria be the most abundant life forms on earth?