That’s where their special pockets and their favorite rocks come in. Researchers have observed sea otters using their chosen rocks in two ways: either as an anvil, placing the rock on their ...

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.

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

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," ...

We're starting to realize how smart otters really are. They know how to play basketball. They know how to stack cups, They know how to use rocks to open clams. This type of tool use is ...

One of Tilly’s earliest tastes of fame came in 2012 when her photo was used in an episode of 30 Rock. In the world of the NBC sitcom, the otter was famous for her resemblance to Tracy Morgan’s ...

Tilly, a 16-year-old otter, known for her motherly instincts and cameo on "30 Rock" has died. She was humanely euthanized April 30 due to declining health and old age, Or e gon Zoo said.