Dramatic footage of a lion causing a rider to fall off his horse during a "horseback safari" in Botswana. <br /><br />The video, filmed last October in the Okavango Delta, shows the crew riding across grassland when suddenly a lioness begins chasing them. <br /><br />The filmer later wrote online: "We were riding in the grassland and our guide suddenly saw the male lion (previously hidden behind a termite mound) very close on our left. <br /><br />"When we (quickly) turned to ride away from him, a lioness popped out from behind some bushes and began to pursue our group." <br /><br />"One of the horses cut in front of my husband's horse, and he pushed off to avoid potentially getting trampled underfoot," he continued. <br /><br />"When he emerged from the water, he found himself virtually face to face with the lioness. <br /><br />"Luckily, she decided he wasn't the lunch she wanted and he was able to safely retreat back to our guide.