It mostly means that they wont be friends. You should separate them so they don't hurt each other. They could be scared of each other or they don't like one another. If their 2 males they are probably going to fight.
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It depends on many factors. If they are displaying dominance (gender is not an issue, girls and boys do this), it's called 'rumble strutting' which consists of the pig moving very slowly, almost vibrating because of the deep rumbling sound he/she makes and moving his/her bum very high in the air. What usuall follows this is a nip to the pig they are aiming it at, and perhaps a fight. However, I own two males who rumble strut at each other all the time, but they get along just fine and there haven't been any signs of violence - their ears are perfect. Keep an eye out for any bites on your pigs ears, or their backs and if there are, you need to separate them immediately.
Another reason for rumble strutting is that the male/female wants to mate with the other one. Males normally take it upon themselves to practise this at least once a day, but for females it's actually an indication that they're in heat, so they will proceed to sexually harass their cagemate. Make sure that your pigs are the same sex; there are many articles on the internet with images that can help you.
This last bit isn't entirely unrelated, but if a pig is really happy about you stroking them in the right way when you're handling them, they will make the deep rumbling sound.
Hope I helped.
Rabbits growl when they're angry, as a warning sign before they attack. A rabbit growl is closed-mouthed and quiet compared to predator animals (cats, dogs, etc.), but if you're nearby you can hear it loud and clear. Not all rabbits growl: some rabbits are "vocal" and others are quiet - it depends on their personality. See the related question and link below for more information about rabbit communication.
Some specific examples of why a rabbit might growl:
it means that they wanna be left alone that their irritated
It could mean that they are irritated, sometimes a doe will grunt when they want to let you (or the buck) know they are already bred.
They do. They will growl as a warning to you to leave them alone or get out of their space. They will also make growling noises at each other when they want to be left alone.
It is farting! It will stink soon! If you have any questions please email me at bcutiegirl09@aol.com
If a rabbit makes a "yelp" sound, it's either hurt or frightened. See the related questions and links below for more info.
They are mad, basically.
bark Bark,growl,yelp,whine,yip,and of course the little ones Yap.
Yelp is an old term/slang used amongst dog breeders that also means birthed. I don't find it commonly used anymore, most of us use the term Whelp, Whelped, or Whelping when it comes to the birthing process. However; you will still find some breeders who use the term Yelp.
Yes. Sometimes they relieve their bowels too.
An animal cry for help is "yelp."
Most possibly from fear
bark Bark,growl,yelp,whine,yip,and of course the little ones Yap.
a young whelp/ hound
A squealing yelp like........................................................NOOB
Woof Woof | Arf | Bark...?? I mean come on.
Yelp Inc. (YELP)had its IPO in 2012.
Dogs are known to howl, bark, ruff, woof, arf, yip, yelp, whine, and grrowl.
As of July 2014, the market cap for Yelp Inc. (YELP) is $4,999,845,879.10.
The symbol for Yelp Inc. in the NYSE is: YELP.
If you mean help then yelp, kelt and that's all I can think of.
If your dog is behaving oddly you need to take them to the vet for a check-up instead of asking some random person on the internet for medical advice.
You can hear fox sounds on the website, "Sounds of the Fox."
everyone sounds different hon. Some might yelp some might just spazz quietly