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 young pups who had lost their moms and needed a second chance,” Jen Osburn ...

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.

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 ...

Average home prices of $1 million, $2 million or even $4 million? This is not uncommon in many cities in the Pacific ...

The heroically durable American pika appears to be making a comeback as it faces down such existential challenges as wildfire and climate change.