In terms of numbers of species, which animal group is the largest?

beebee, Lobster are not insects, they are crustacean! Both are arthropods, a large category of animals that also include arachnids (spiders, scorpions,mites...) among other thing.

insects grow very large in the ocean

This game likes to show extreme closeups of creepy crawlers! I skip them as fast as I can!

guess I need the definition of animal. none of them are too me

Pook, "mollusc" and "mollusk" are both valid spellings in different parts of the world, so it is not misspelled in the question. I suggest that you broaden your horizons and get used to regional differences.

Pook, on mine it's just pluralized

most insects are a wonderful source of protein however I'll have those only if I'm ever in a survival situation

ConnectedLecturer14, they are already breading; eating roaches in China. no thinks I'll pass. but who knows a lot of our food source comes from China Perhapes they are drying them & creating a powder form a n d adding that in for more protein!

JezzerLX, so modest of u!