diff --git a/README.md b/README.md
index cba3b63..5f47244 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,8 @@ A [Minetest][] mod that provides a set of free sounds & methods. It is intended
 | [hyena_03][]                      | [↓](#authors)            | CC BY 2.0    |                         |
 | [jaguar_saw][]                    | About Zoos               | CC BY        |                         |
 | [lion_bellow][]                   | felix.blume              | CC0          |                         |
-| [mouse][]                         | AntumDeluge              | CC0          |                         |
+| [monkey][]                        | AntumDeluge              | CC0          | imitation               |
+| [mouse][]                         | AntumDeluge              | CC0          | imitation               |
 | [owl_hoot][]                      | Anthousai                | CC0          |                         |
 | [parrot*][]                       | Mings                    | CC BY 3.0    |                         |
 | [peacock][]                       | dobroide                 | CC BY 3.0    |                         |
@@ -79,12 +80,12 @@ A [Minetest][] mod that provides a set of free sounds & methods. It is intended
 | [tiger_snarl_01][tiger_roar_01]   | videog                   | CC BY 3.0    |                         |
 | [tiger_snarl_0[2-4]][tiger_snarl] | schots                   | CC0          |                         |
 | [undead_moan_*][undead_moan]      | AntumDeluge              | CC0          |                         |
-| [vulture][]                       | AntumDeluge              | CC0          |                         |
+| [vulture][]                       | AntumDeluge              | CC0          | imitation               |
 | [watch_tick][]                    | Nicolas4677              | CC0          |                         |
 | [whistle][]                       | pawsound                 | CC0          |                         |
 | [wolf_howl][]                     | killyourpepe             | CC0          |                         |
 | [wolf_snarl][]                    | newagesoup               | CC BY 3.0    |                         |
-| [yak][]                           | AntumDeluge              | CC0          |                         |
+| [yak][]                           | AntumDeluge              | CC0          | imitation               |
 | [zebra][]                         | Peet J van Eeden         | CC BY        |                         |
 | [zipper][]                        | AntumDeluge              | CC0          |                         |
 
@@ -296,6 +297,7 @@ end
 [hyena_03]: https://commons.wikimedia.org/wiki/File:Giggling_call_of_a_spotted_hyena_(Crocuta_crocuta)_-_1472-6785-10-9-S5.oga
 [jaguar_saw]: https://www.youtube.com/watch?v=VJ0RCZXu0v4
 [lion_bellow]: https://freesound.org/s/405211/
+[monkey]: https://opengameart.org/node/81240
 [mouse]: https://opengameart.org/node/16331
 [owl_hoot]: https://freesound.org/s/398734/
 [parrot]: https://freesound.org/s/160381/
diff --git a/TODO.txt b/TODO.txt
index 5e83cd8..4e9b739 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -15,7 +15,6 @@ TODO:
 	- wind
 	- tree
 	- leaves
-	- monkey / chimp
 	- dolphin
 	- bear
 	- leopard
diff --git a/changelog.txt b/changelog.txt
index 3bef72d..ed119e3 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -9,6 +9,7 @@ next
 	- gorilla_grunt
 	- gorilla_roar
 	- gorilla_snarl
+	- monkey
 	- parrot
 	- parrot_chirp
 	- parrot_whistle
diff --git a/groups_animal.lua b/groups_animal.lua
index 5fa089c..671f6af 100644
--- a/groups_animal.lua
+++ b/groups_animal.lua
@@ -525,6 +525,26 @@ sounds.gorilla_snarl = SoundGroup({
 --  @sndgroup sounds.gorilla
 sounds.gorilla = sounds.gorilla_grunt + sounds.gorilla_roar + sounds.gorilla_snarl
 
+--- @sndgroup sounds.monkey
+--  @snd monkey_01
+--  @snd monkey_02
+--  @snd monkey_03
+sounds.monkey = SoundGroup({
+	"monkey_01",
+	"monkey_02",
+	"monkey_03",
+})
+
+--- <br>
+--
+--  Includes:
+--
+--  - `sounds.gorilla`
+--  - `sounds.monkey`
+--
+--  @sndgroup sounds.primate
+sounds.primate = sounds.gorilla + sounds.monkey
+
 
 
 --- Rodent
diff --git a/sounds/sounds_monkey_01.ogg b/sounds/sounds_monkey_01.ogg
new file mode 100644
index 0000000..3b202f4
Binary files /dev/null and b/sounds/sounds_monkey_01.ogg differ
diff --git a/sounds/sounds_monkey_02.ogg b/sounds/sounds_monkey_02.ogg
new file mode 100644
index 0000000..c3017cb
Binary files /dev/null and b/sounds/sounds_monkey_02.ogg differ
diff --git a/sounds/sounds_monkey_03.ogg b/sounds/sounds_monkey_03.ogg
new file mode 100644
index 0000000..952516f
Binary files /dev/null and b/sounds/sounds_monkey_03.ogg differ
diff --git a/sounds_src/sounds_monkey_01.flac b/sounds_src/sounds_monkey_01.flac
new file mode 100644
index 0000000..b0451f8
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diff --git a/sounds_src/sounds_monkey_02.flac b/sounds_src/sounds_monkey_02.flac
new file mode 100644
index 0000000..37ea0c7
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diff --git a/sounds_src/sounds_monkey_03.flac b/sounds_src/sounds_monkey_03.flac
new file mode 100644
index 0000000..b061f24
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