diff --git a/README.md b/README.md
index 051595d..42b2f4f 100644
--- a/README.md
+++ b/README.md
@@ -62,12 +62,11 @@ library(rnaturalearth)
 
 ### Terrestrial species
 
-Let's download worldwide the records of *Panthera tigris* only based on true observations:
+Let's download worldwide the records of *Panthera tigris* only based on true observations and litterature information:
 
 ``` r
 # Download
-obs_pt = get_gbif(sp_name = "Panthera tigris",
-                  basis = c("OBSERVATION","HUMAN_OBSERVATION","MACHINE_OBSERVATION"))
+obs_pt = get_gbif(sp_name = "Panthera tigris")
 
 # Plot species records
 countries = ne_countries(type = "countries",returnclass = "sv")