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” ...

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

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 is mourning the death of Tilly, the river otter who started out as a rescued orphan pup and went on to become ...

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

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.