Starting with the most obvious, fish begin with F and are found in oceans.
Flatfish is a species of fish that live in oceans.
Flounder is a type of flatfish also found in oceans.
The flying fish is a species of fish in the ocean which has the unusual ability to "fly" or glide long distances over the surface of the water.
Fur seals are mammals most commonly found in oceans on the Southern Hemisphere, though they also have less common northern cousins too.
The fin whale is a marine mammal. It is found in oceans throughout the world.
quayhog
algaeanchors
Nurse shark is an ocean critter. It begins with the letter N.
turtles
Anchovies are very salty. They start with the letter a.
Some nouns for things that start with the letter A are:acornanchorankleappleargumentazaleaSome nouns for places that start with the letter A are: AfricaAnnapolisArabian DesertArizonaArctic CircleAustralia
Some things (nouns) that start with the letter I are:ibisiceicebergice creamicicleicingiconidideaidiomidiotignoranceillusionimaginationimpulseinchincisorindependenceingotinquiryinspirationinventioninvitationionireiridesenceirisiritationironivory
Small things that start with the letter s:saltsandsawdustscrewseedsleetslugsnailsparkspeckstone
Some things that start with the letters AT are:atomattonementattractionatmosphereatticattitudeattackattorneyatollatriumatlas
apes
Nurse shark and narwhal are shark species. They live in the ocean.
Some things that are in nature that start with the letter t are: tree, thorn, treetop, tree trunk