This alligator looks very dangerous!
I was hiking near the river when I spotted an alligator sunbathing on the muddy bank.
No, you never need to capitalize alligator unless it is the first word of the sentence.
"Gee, what nice looking alligator shoes!" "Have you ever visited the alligator farm in Buena Park?"
yes you can example: An alligator is an animal
An alligator is not a warm-blooded animal.
I would like a larger alligator for the castle's moat, please.
The American alligator lives in some Florida swamps.
Yes, the word "alligator" should not be capitalized unless it begins a sentence or is part of a title or name.
extinction of the Chinese alligator have been a big thing in china
The furry raccoon was swallowed by the gigantic alligator.
I had seen an ALBINO alligator before. see not so hard! :) ;)