Wildlife enthusiasts love to see images of rare species. There was some good news in 2024 for species on the verge of disappearing. Extinct for 4,000 years, scientists are inching closer to ...

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 magazine ... and eat them. Many of the creatures lumped together as jellyfish are no more closely related than, say, horseflies ...