porygons:

source | source | source
Black wolves do not occur naturally. A 2008 study at Stanford University found that the mutation responsible for black fur occurs only in dogs, so black wolves are the result of gray wolves breeding back with domestic canines. The mutation is a dominant trait, like dark hair in humans, and is passed down to the majority of offspring. It is not entirely clear what benefit black fur has for the animals; they do not seem to be more successful hunters, but do show a marked improvement in immunity to certain infections.

cool!


April 28th/ via - source 20,242 notes


  1. captain-timblr reblogged this from certifiedcynic
  2. certifiedcynic reblogged this from brandonbunny
  3. missastronaut reblogged this from pembroke
  4. dead-until-dark reblogged this from stormcloak-of-windhelm
  5. grendel91 reblogged this from jwexpress
  6. jwexpress reblogged this from sofieheartcrash
  7. sofieheartcrash reblogged this from stormcloak-of-windhelm
  8. stormcloak-of-windhelm reblogged this from lopsidedmoon
  9. lopsidedmoon reblogged this from holyhelena
  10. superiorbushidoman reblogged this from iseethebadmoonrising
  11. alittlehelltoraise reblogged this from supernaturallyedsheeran
  12. wordsofquietangels reblogged this from sovietrussiavevo
  13. supernaturallyedsheeran reblogged this from sovietrussiavevo
  14. tutankhamoist reblogged this from sovietrussiavevo
  15. sovietrussiavevo reblogged this from doodleboarder24
  16. doodleboarder24 reblogged this from too-tired-to-life
  17. iseethebadmoonrising reblogged this from gettothestabbing
  18. too-tired-to-life reblogged this from discontent-troll
  19. discontent-troll reblogged this from gettothestabbing
  20. gettothestabbing reblogged this from seawisher
  21. capnfalcon reblogged this from peterpanneverfails
  22. mainestays reblogged this from ewan-mcgruber
  23. outlaw-monarch reblogged this from vivisic
  24. vivisic reblogged this from crime-of-the-century
  25. bathrasher reblogged this from h-o-r-n-g-r-y
  26. radiantbutterfly reblogged this from latining
  27. elevendc reblogged this from bellegore
  28. lionandfox reblogged this from latining
  29. latining reblogged this from latitans
  30. nevereverbutalways reblogged this from ourdrybones




TC