Harbor seals

via Flickr/Derringdos

St. Louis Zoo officials say the deaths of three harbor seals in transit from Canada to St. Louis last month were due to exertional myopathy, or a disease of the muscles. The disease was likely brought on by the stress of travel.

Robin Winkelman/Saint Louis Zoo

Starting this Saturday, visitors to the Saint Louis Zoo will have their first chance to check out a new sea lion exhibit.

The 1.5 acre, $18 million habitat will house 11 California sea lions in a large saltwater pool. There’s also an arena for sea lion shows.

Derringdos / Flickr

Updated 10:34 a.m. June 13, 2012 with announcement of third seal death.

The Saint Louis Zoo has announced the death of a third seal (the one which was left at the Indianapolis Zoo for observation and treatment). The seal, Cri Cri, was 19 years old. 

A necropsy will be performed by the College of Veterinary Medicine at Purdue University to try to find the cause of death of Cri Cri. Necropsies were performed for the other two seals who died by the Saint Louis Zoo's veterinary pathologist.