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From the fearsome piranha and vampire fish to the mighty anaconda, the crocodile, and the candiru, these are among the most terrifying reptiles, insects, spiders, and fish.

What would you do if you went hiking and came face-to-face with a massive grizzly bear and her two curious cubs?

This story appears in the October 2018 issue of National Geographic magazine. Moon jellies, which are found in shallow bays around the world, look like small, not entirely friendly ghosts.

Young kids will get the chance to watch their stuffed animals get vaccinated, weighed and have X-rays taken as part of Inova Loudoun Hospital’s Teddy Bear Clinic on Saturday. It’s the first ...