Some animals that are spelled with 6 letters are:
Alpaca
Argali
Baboon
Badger
Beaver
Bobcat
Cougar
Coyote
Desman
Dexter
Donkey
Fennec
Ferret
Gerbil
Gibbon
Gopher
Howler
Jackal
Jaguar
Kodiak
Koodoo
Langur
Monkey
Morkin
Numbat
Nutria
Ocelot
Onager
Pardal
Possum
Quagga
Rabbit
Racoon
Rhesus
Serval
Sifaka
Turtle
Tusker
Uakari
Vervet
Vicuna
Walrus
Weasel
Wombat
Yapock
And these are only a few!
Capuchin Monkey
Flying Squrriel
Indian Elephant
Tasmanian Devil
Snowshoe Rabbit
rabbit, baboon
It could be a fish.
Bear wolf lynx bull dogs cats oxen cows.
rabbit, baboon, donkey
Rabbit
Jaguar
A octuapus
rabbit has 6 letters R-A-B-B-I-T
Monkey, badger, rabbit are a few examples of animal words that have two syllables. There are quite a few more.
The word happy has six letters and two syllables. The syllables of the word are hap-py.
Animal already has six letters in itself. mammal
It's more usual to indicate stressed and unstressed syllables. There are three unstressed syllables in apparatus, comprising six letters.
No it isn't. It has two syllables. The first syllable has three letters but the second syllable has two letters. (Jel-ly)
Boabab
alphabet
grapesorangeraisintomatopapayabananaprunescherry
turtle
Assuming you mean exactly six letters - there are three English-language day names with six letters - Monday, Friday, Sunday.
walnut