diff --git a/implement-cowsay/cow.py b/implement-cowsay/cow.py
new file mode 100644
index 00000000..ecf1f2c9
--- /dev/null
+++ b/implement-cowsay/cow.py
@@ -0,0 +1,30 @@
+
+import argparse
+import cowsay
+
+def main():
+    animals = sorted(cowsay.char_names)
+
+    parser = argparse.ArgumentParser(
+        prog='cowsay',
+        description='Make animals say things'
+    )
+    parser.add_argument(
+        '--animal',
+        choices=animals,
+        default='cow',
+        help='The animal to be saying things.'
+    )
+    parser.add_argument(
+        'message',
+        nargs='+',
+        help='The message to say.'
+    )
+
+    args = parser.parse_args()
+    text = " ".join(args.message)
+
+    getattr(cowsay, args.animal)(text)
+
+if __name__ == '__main__':
+    main()
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..cc557103
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+cowsay
\ No newline at end of file