13. Tigers do not live in permanent groups like lions do. For the most part, they live solitary lives except when females are raising cubs. Although rarely seen, the term for a group of tigers is a "streak."
14. You can hear a tiger's roar from up to two miles away. Tiger vocalizations include roaring, growling, hissing, moaning and chuffing.
15. Tigers are generally nocturnal hunters. Their night vision is up to six-times greater than ours. But they're also opportunists, which means they won't pass up the chance for a daytime snack when it's available.
16. A tiger's hind legs are longer than its front legs, giving them the ability to leap forward 20 - 30 feet in one jump.
17. Tigers have large, padded, feet that make it easier for them to silently stalk their prey.
18. Tigers are ambush hunters preferring to sneak up on their prey before exploding into action, killing them with a bite to the neck or back of the head. They mainly hunt deer, wild boar, buffalo and antelope. But they'll kill and eat what's available, from small birds to bears to the occasional elephant.