The Russian Bion M1, launched on April 19, 2013 from the Baikonur Cosmodrome in Kazakhstan, and returned on May 19th. The biology mission appears to have been a mixed success:
- Crew of Bion M1 Found Dead upon Landing – Space Safety Magazine
- Russian mice, gerbils dead in 30-day space ordeal; lizards live – latimes.com
- Lessons from Bion M Failures – Citizens in Space
More background info about the project: