A test shows that bull sharks react strongly to crocodile scent, which could help researchers develop a new bull shark repellent.<br /><br />SHARK WEEK is back with shark n' awe and continues every night through Sunday, July 3. <br /><br />SHARK WEEK, television's longest running and most anticipated summer event will make a huge splash this this summer with all-new compelling and jaw-dropping shark stories and shark technology.<br /><br />Subscribe to Discovery:<br />http://bit.ly/SubscribeDiscovery <br /><br />Join us on Facebook: <br />https://www.facebook.com/ Discovery<br /><br />Follow on Twitter: <br />https://twitter.com/Discovery
