Snowball, a 21-year-old albino alligator at the Newport Aquarium, has died. The aquarium announced the rare alligator's passing on social media Tuesday but did not state a cause of death.

Silver angelfish enjoy living alongside other members of their species. ©iStock.com/TatianaMironenko The greatest differences between a male angelfish and a female ...

When you first get a new angelfish, you may find yourself wondering whether or not it’s a male or female. After all, you might have your heart set on a specific sex for breeding purposes. However, ...