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.

“Young river otters are extremely dependent on their mothers, and Tilly not only raised her own offspring but three other ...

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” ...

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," ...

TACOMA – A zoo euthanized a “beloved” North American river otter after her health declined due to her age, Oregon zookeepers said. Tilly, a river otter that was euthanized at the age of 16 ...

"Young river otters are extremely dependent on their mothers, and Tilly not only raised her own offspring but three other young pups who had lost their moms and needed a second chance," Osburn ...

A “beloved” river otter named Tilly was euthanized in Oregon, zookeepers said. Screengrab from Oregon Zoo A zoo euthanized a “beloved” North American river otter after her health declined ...