diff --git a/.all-contributorsrc b/.all-contributorsrc
index d02fe784bd..37b86693ee 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -2226,6 +2226,15 @@
       "contributions": [
         "content"
       ]
+    },
+    {
+      "login": "jrcarl624",
+      "name": "Joshua Carlson",
+      "avatar_url": "https://avatars.githubusercontent.com/u/61999256?v=4",
+      "profile": "http://androecia.net",
+      "contributions": [
+        "content"
+      ]
     }
   ],
   "contributorsPerLine": 8,
diff --git a/AUTHORS.md b/AUTHORS.md
index 4e7771747f..6c1ee1e3a4 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -315,6 +315,7 @@ authors.
       <td align="center" valign="top" width="12.5%"><a href="https://github.com/tajo48"><img src="https://avatars.githubusercontent.com/u/55502906?v=4?s=100" width="100px;" alt="tajo48"/><br /><sub><b>tajo48</b></sub></a><br /><a href="#content-tajo48" title="Content">🖋</a></td>
       <td align="center" valign="top" width="12.5%"><a href="https://anishchhetri.com.np"><img src="https://avatars.githubusercontent.com/u/98446102?v=4?s=100" width="100px;" alt="Anish"/><br /><sub><b>Anish</b></sub></a><br /><a href="#content-novanish" title="Content">🖋</a></td>
       <td align="center" valign="top" width="12.5%"><a href="https://github.com/vnprc"><img src="https://avatars.githubusercontent.com/u/9425366?v=4?s=100" width="100px;" alt="vnprc"/><br /><sub><b>vnprc</b></sub></a><br /><a href="#content-vnprc" title="Content">🖋</a></td>
+      <td align="center" valign="top" width="12.5%"><a href="http://androecia.net"><img src="https://avatars.githubusercontent.com/u/61999256?v=4?s=100" width="100px;" alt="Joshua Carlson"/><br /><sub><b>Joshua Carlson</b></sub></a><br /><a href="#content-jrcarl624" title="Content">🖋</a></td>
     </tr>
   </tbody>
 </table>
diff --git a/exercises/if/if3.rs b/exercises/if/if3.rs
new file mode 100644
index 0000000000..73a7025bcc
--- /dev/null
+++ b/exercises/if/if3.rs
@@ -0,0 +1,55 @@
+// if3.rs
+//
+// Execute `rustlings hint if3` or use the `hint` watch subcommand for a hint.
+
+// I AM NOT DONE
+
+pub fn animal_habitat(animal: &str) -> &'static str {
+    let identifier = if animal == "crab" {
+        1
+    } else if animal == "gopher" {
+        2.0
+    } else if animal == "snake" {
+        3
+    } else {
+        "Unknown"
+    };
+
+    // DO NOT CHANGE THIS STATEMENT BELOW
+    let habitat = if identifier == 1 {
+        "Beach"
+    } else if identifier == 2 {
+        "Burrow"
+    } else if identifier == 3 {
+        "Desert"
+    } else {
+        "Unknown"
+    };
+
+    habitat
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn gopher_lives_in_burrow() {
+        assert_eq!(animal_habitat("gopher"), "Burrow")
+    }
+
+    #[test]
+    fn snake_lives_in_desert() {
+        assert_eq!(animal_habitat("snake"), "Desert")
+    }
+
+    #[test]
+    fn crab_lives_on_beach() {
+        assert_eq!(animal_habitat("crab"), "Beach")
+    }
+
+    #[test]
+    fn unknown_animal() {
+        assert_eq!(animal_habitat("dinosaur"), "Unknown")
+    }
+}
diff --git a/info.toml b/info.toml
index e4863cbf89..e8a28cbc63 100644
--- a/info.toml
+++ b/info.toml
@@ -167,6 +167,13 @@ For that first compiler error, it's important in Rust that each conditional
 block returns the same type! To get the tests passing, you will need a couple
 conditions checking different input values."""
 
+[[exercises]]
+name = "if3"
+path = "exercises/if/if3.rs"
+mode = "test"
+hint = """
+In Rust, every arm of an `if` expression has to return the same type of value. Make sure the type is consistent across all arms."""
+
 # QUIZ 1
 
 [[exercises]]