Well, I'm just curious to know whether Rogue can absorb animal life as well as human life like if she touched a cat or a dog. Would she gain their fur, claws etc or would she just absorb their life force? 

"Well, I'm just curious to know whether Rogue can absorb animal life as well as human life like if she touched a cat or a dog. Would she gain their fur, claws etc or would she just absorb their life force?  "

Oh... have you asked this at other sites by chance? With writer's discretion up to various degrees, she probably can. She has absorbed Wolverine many times, and he is more dog than man really... I can't really think of any specific examples she has absorbed from animals, but she has had fur and claws before from like Beast and other type characters, also though  when Rogue broke Professor X's favorite Vase... 
 

" Rogue's powers can't affect anything that is plant-life, animal, or anything else that hardly resembles a human, besides some alien beings. Her powers are temporary and she can only absorb abilities, powers, and memories.  "

"Rogue's powers can't affect anything that is plant-life, animal, or anything else that hardly resembles a human, besides some alien beings. Her powers are temporary and she can only absorb abilities, powers, and memories.  "

She's absorbed Magus in the past, who is techno-organic and barely resembles a human. 
Actually i don't think there's any reason why she wouldn't be able to absorb an animal.

" @SC:  No, I haven't!  Where's it from? "

" She's absorbed Magus in the past, who is techno-organic and barely resembles a human.  Actually i don't think there's any reason why she wouldn't be able to absorb an animal. "

@hazlenaut: Colossus Organic Steel doesn't protect him against Rogue touch at all. That is only a movie thing. In the Comics she has done it multiple times.

Also Rogue keeping Carols powers permanently had nothing to do with her half Kree DNA. Rogue held onto Ms. Marvel to long. Rogue can maintain abilities for hours with the slightest touch. So if she holds onto someone for like 30 Seconds or more they will become permanent. She only held onto Ms.marvel for like 30 Seconds max. However long it takes you to read that sentence.

Also she eventually does become strong enough to absorb WonderMan.

She also absorbed the Hetacomb which was nothing more the Psi-Energy and technology.

So she can absorbed any living thing or any living Energy.

Rogue was also able to absorb Selene(vampir) and Thor(god) powers.

Well as long as it is organic energy, she can, she has absorbed different races of aliens, gods, characters with powers and cosmic level, demons, and the recent exceptions ghosts, and beings in astral form without physical body.

Before she was only limited to organic beings and could not absorb characters with powers based on technologies, but in recent years her powers have increased, and many exceptions have been given, for example she has absorbed people in astral forms (without physical body ) and has absorbed powers that are based on technology, at least there have been some exceptions from this, such as the powers of Wonderman (which does not have an organic body really, but of pure energy) and the former was immune to his touch, no longer , and she absorbed the powers of the childrens of the vault, that their powers come from technology, they are not natural.