Spiders!!!
Uliodon spiders are insects. They begin with the letter u.
flower crab spider
European cave spider
No ocean starts with the letter M.
Maserati and Mercedes-Benz are European cars. They begin with the letter m.
Mob and minicab are words that begin with the letter m and end with b.
Five letter adjectives that begin with the letter m:machomagicmajormanlymeatymerrymessyminormintymistymixedmodelmoistmoodymoralmousymuddymuggymurkymushymusty
US state capitals that begin with the letter 'M'... Montgomery, Montpelier and Madison.
Mushroom
Mushroom
Ape, Anaconda, Arachnid (spiders)