diff --git a/R/data.R b/R/data.R
index eaa1686..7b8aeb3 100644
--- a/R/data.R
+++ b/R/data.R
@@ -17,7 +17,6 @@
 #'   \item{id}{Ensembl gene ID}
 #'   \item{name}{The gene's HGNC name}
 #'   \item{chrosome}{The human chromosome the gene is located on}
-#'   \item{n_species}{Number of known species with the gene.}
 #' }
 "genes"
 
diff --git a/data/genes.rda b/data/genes.rda
index 793f8c1..823e6af 100644
Binary files a/data/genes.rda and b/data/genes.rda differ
diff --git a/man/genes.Rd b/man/genes.Rd
index 5cf2454..7ec959d 100644
--- a/man/genes.Rd
+++ b/man/genes.Rd
@@ -10,7 +10,6 @@ A \link{data.table} with 60568 rows and 3 variables:
 \item{id}{Ensembl gene ID}
 \item{name}{The gene's HGNC name}
 \item{chrosome}{The human chromosome the gene is located on}
-\item{n_species}{Number of known species with the gene.}
 }
 }
 \usage{
diff --git a/scripts/ensembl.R b/scripts/ensembl.R
index 3807cbc..94f3740 100644
--- a/scripts/ensembl.R
+++ b/scripts/ensembl.R
@@ -142,11 +142,6 @@ for (species_id in species[!id == "hsapiens", id]) {
     distances <- rbindlist(list(distances, species_distances))
 }
 
-# Add information on number of species per gene.
-
-genes_n_species <- distances[, .(n_species = .N), by = "gene"]
-genes <- merge(genes, genes_n_species, by.x = "id", by.y = "gene")
-
 # Save data in the appropriate place.
 
 usethis::use_data(species, overwrite = TRUE)