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Extinction is a very serious issue facing our world today. However, when it comes to some of these extinct animals, we have to admit, we're kind of glad they’re gone. If you have a phobia for bugs, worms or snakes, you will be unhappy to know our ancestors faced and survived worst creatures. Today, let’s check out top 30 terrifying animals we are so glad are extinct. 1. Andrewsarchus These scary animals lived during the Eocene Epoch age, 45 to 36 million years ago. They were giant carnivorous mammals, at 1.8 meters in height and 3.6 meters in length. According to paleontologists, the animals could have weighed up to 1.8 metric tons, making them the largest predators among the mammals on land. They had a complete set of placental dental formula that comprised 3 incisors, 1 canine, 4 premolars and 3 molars in each side of its jaws. Meaning they were entelodonts. 2. Deinosuchus Sounds like suckers of dinosaurs. I wonder why. This scary monster is an extinct animal similar to modern day alligat
