<p>A safari close to Tel Aviv in Israel said it was assessing its security after a hippopotamus walked out an open gate on the evening of November 1 before turning around and walking back in.</p><p>The Ramat Gan Safari shared this security footage of the incident on Facebook the following day. The video shows the hippo walking out the gate at 6:07pm and returning inside about three minutes later.</p><p>In a brief statement that accompanied the video, the safari said its board was treating the incident seriously and was conducting an investigation. Credit: Zoological Center Tel Aviv – Ramat Gan Safari via Storyful</p><br />
