Learn about Tilly and her offspring at the Oregon Zoo.
Read about Mo's move to the Seattle Aquarium in January 2014.
Read about Ziggy's move to Woodland Park Zoo in March 2015.
Read about Tilly's new pups born February 26, 2017.
See Tilly's River otter pups growing up fast on March 9, 2017.
Tilly's pups are now four and a half pounds - April 14, 2017
Tucker's first swim lesson with Tilly - April 21, 2017