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.

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," ...

Tilly, a 16-year-old otter, known for her motherly instincts and cameo on "30 Rock" has died ... named after Oregon's Tillamook River, thrived at the zoo and became renowned for her parenting ...