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.

Oregon Zoo is mourning the death of their famous river otter, Tilly, at the age of 16. She won the zoo's “Mom of the Year” ...

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

Tilly, a 16-year-old river otter at the Oregon Zoo known for being "Mom of the Year" and a cameo on the NBC show "30 Rock," ...

The Oregon Zoo said goodbye to a member of the otter family Wednesday. Tilly, the zoo’s oldest North American river otter, ...

This is a very sad time, especially for Tilly’s care staff,” said Jen Osburn Eliot with the Oregon Zoo, in a statement.

The Oregon Zoo mourns the loss of Tilly, a 16-year-old North American river otter, who was humanely euthanized due to ...

Zoo staff euthanized the 16-year-old otter Tilly, who had a cameo on NBC's '"30 Rock," following a decline due to her age, the Oregon zoo said.

The Oregon Zoo is mourning the loss of Tilly, the oldest member of its North American river otter family, who was humanely euthanized following a decline due to her advanced age. At 16, Tilly was ...

If you see a furry head with whiskers pop up in a local creek or wetland, it may be an otter. Or it may be a beaver. River otters were re-introduced to Western New York in the late 1990s after ...

It was a somber day at the Oregon Zoo on Wednesday when the zoo announced the death of its beloved otter ‘Tilly’.

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