classification <- c("name", "genus", "vore", "order", "conservation")

msleep %>%
  select(!!classification)

## # A tibble: 83 x 5
##    name                       genus       vore  order        conservation
##    <chr>                      <chr>       <chr> <chr>        <chr>       
##  1 Cheetah                    Acinonyx    carni Carnivora    lc          
##  2 Owl monkey                 Aotus       omni  Primates     <NA>        
##  3 Mountain beaver            Aplodontia  herbi Rodentia     nt          
##  4 Greater short-tailed shrew Blarina     omni  Soricomorpha lc          
##  5 Cow                        Bos         herbi Artiodactyla domesticated
##  6 Three-toed sloth           Bradypus    herbi Pilosa       <NA>        
##  7 Northern fur seal          Callorhinus carni Carnivora    vu          
##  8 Vesper mouse               Calomys     <NA>  Rodentia     <NA>        
##  9 Dog                        Canis       carni Carnivora    domesticated
## 10 Roe deer                   Capreolus   herbi Artiodactyla lc          
## # ... with 73 more rows