Newbie with a Canon question

Hi, I have a Canon EOS Rebel T3I with a EFS 55-250 mm and a EFS 18-55mm lense. I primarily shoot nature/ sunsets/ scenes. What is a good lense to go for next? I would like to do some long distant zoom wild animal shots in the future.

Any advice would be appreciated.
For landscape shots you usually shoot with a wide lens, 24mm for example. If you want to shoot animals youll need the oposite. I am a believer in getting higher aperture lenses, so if you need to get 2 primes to save on cost i would do that. I shoot nikon and to range from 24 to 200 with high aperture will cost about 4k for zooms.