Not so much as a weapon but a warning to other predators.
Skunk sometimes squid
The most obvious answer is the skunk
Skunks.
A skunk!
skunk
The skunk.
Many animals uses their odor as a weapon. You could surely find many on the internet.
Electric eel.
Skunks spray smelly musk to repell threats.
The DOG is an animal which uses smell as a weapon and so is a skunk. Hope it helped!!!
Weasels, badgers, stinkbugs, there are lots of animals that use this for protection.
Well a skunk does and so does a stink bug.I think think there are thousands more but lets stike with these.