Alligator.
The words "I" and "a" each contain only one letter which is a vowel. a word that has only vowels could be aiea and it is a city name
all words have vowels
The only 8-letter word with 5 vowels in a row is queueing.
Krn
Alligator.
A hamster.
There are 4 vowels in the name "Eugene" - E, u, e, and e.
Aves is a scientific name for birds.
Koi is the animal. A koi is a fish.
If you are referring to an animal with a four letter name that is an herbivore.... deer and goatare all that I can think of. Sorry. Hope that is what you were asking for.
Alternative answer: A Lynx.
the word "what" has four letters with one vowel - as does "word".......
Hare and dove are four letter animals. Additional four letter animals include nene (bird) and mule.
"Eugene" is a name that meets these requirements.
Dominique
The tree is the sequoia, a giant redwood.