The Jel Sert Company and the Oklahoma City Zoo teamed up to celebrate “World Otter Day” on May 31, 2017. The partnership included a 3-hour otter enrichment activity in the Big Rivers Building in Oklahoma Trails’ exhibit to raise awareness for the river otter. Jel Sert gave out free OTTER POPS to zoo visitors and created custom frozen treats for the exhibit's river otters as well.