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.

This story appears in the October 2018 issue of National Geographic ... branches of the animal family tree, but they also live in different habitats; some like the ocean surface, others the ...

Podolsky co-directed Sea of Shadows, a National Geographic documentary about activists ... tale about the importance of protecting rare animals “at the first sign of trouble”—not when ...