diff --git a/words/tails.txt b/words/tails.txt
index 03283cf6b..15f5f258b 100644
--- a/words/tails.txt
+++ b/words/tails.txt
@@ -613,3 +613,21 @@ rhinoceros
 skink
 stork
 tortoise
+mammut
+mastodon
+quagga
+potoroo
+bilby
+muridae
+bluebuck
+mink
+wisent
+hartebeest
+ibex
+tarpan
+gazelle
+antelope
+elk
+baiji
+stoat
+flamingo