diff --git a/history/007_earthquake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogMouth.java b/history/007_earthquake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogMouth.java
new file mode 100644
index 0000000..c664d21
--- /dev/null
+++ b/history/007_earthquake/src/main/java/com/gitee/drinkjava2/frog/organ/frog/FrogMouth.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2018 the original author or authors. 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by
+ * applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
+ * OF ANY KIND, either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ */
+package com.gitee.drinkjava2.frog.organ.frog;
+
+import com.gitee.drinkjava2.frog.Env;
+import com.gitee.drinkjava2.frog.Animal;
+import com.gitee.drinkjava2.frog.brain.Organ;
+
+/**
+ * Mouth eat food at current x, y position
+ */
+public class FrogMouth extends Organ {// Mouth这个类将食物转化为能量，能量小于0，则青蛙死掉
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	public void active(Animal a) {
+		if (Env.foundAndAteFood(a.x, a.y)) {
+			a.ateFood++; 
+			a.energy += 1000;// 如果青蛙的坐标与食物重合，吃掉food，能量境加 
+		}
+	}
+
+}