Tilly, a river otter, came to the Oregon Zoo in 2009 as an injured and orphaned pup. She birthed four pups while at the zoo.

A zoo euthanized a “beloved” North American river otter after her health declined due to her age, Oregon zookeepers said.

This week, the Animal Health and Animal Science teams performed quick exams of three North American river otter pups so that ...

Three North American river otter pups at Zoo Miami are growing quickly and thriving under the care of their mother, Zinnia, according to Ron Magill, the zoo’s communications director.