Fix a missing species

presets/characters.js

@@ -2117,6 +2117,14 @@ const speciesData = {
       name: "Obstagoon",
       parents: ["zigzagoon"]
     },
+    "thomsons-gazelle": {
+      name: "Thomsons Gazelle",
+      parents: ["gazelle"]
+    },
+    "gazelle": {
+      name: "Gazelle",
+      parents: ["antelope"]
+    },
 }
 
 //species