An unusual saber-toothed creature, similar in size to a tiger but with a reptilian appearance, fought for its place as a predator during Earth’s worst mass extinction event 250 million years ago.

Now, scientists have discovered that a tiger-size, saber-toothed beast called Inostrancevia briefly dominated southern ecosystems after migrating across the supercontinent Pangaea from what is now ...

CALDWELL We look at anatomy. We look at pictures of skeletons of tigers, blow that up to a real tiger size and start marking on pieces of paper on the wall where the joints are all going to be.

Zoo officials said the Siberian tiger, also known as the Amur tiger, has a life expectancy in the wild of 10 to 15 years. Cila lived to be 18.5-years-old.