comment: >
  
  Must have been really useful for people before nail clippers I’m sure but with modern technology seems pretty useless to bite them when for $1 you can buy one lol
context: This is a friendly reminder to read our rules.
  Remember, /r/Showerthoughts is for showerthoughts, not "thoughts had in the shower!"
  (For an explanation of what a "showerthought" is, please read this page.)
  Rule-breaking posts may result in bans. >
  
  Pretty sure I have seen dogs "trimming" their nails by chewing them >
  
  Dogs and cats both >
  
  Yeah, cats' claws seem to grow from the inside out, and they use their teeth to  pull off the outermost layer (and leave claw husks on your bed) >
  
  As an ex-compulsive-biter, you end up living with constant pain as teeth are imprecise instruments, leaving jagged edges (must be re-bitten!) and tending to tear nails to the quick or away from the corners. Ouch.
  Non-compulsive-biters may have better luck. >
  
  my dog and cat trimmed their nails with their teeth.
  probably ever other animal that can easily reach its appendages does this. >
  
  So either you've never had a pet, or you don't know what mammals are. >
  
  It's true that humans are the only mammal with this ability, but I think it's better to just stick to regular nail clippers. Otherwise, you might end up with a mouth full of fingernails - not exactly the best look!