Cougar Mountain Zoo 2009, Peter Rittler continued in the zoo's management. The zoo collection features 32 exhibits of animal habitats concentrating on endangered species such as tigers, lemurs, wolves, reindeer, cranes, wallabies, macaws, and cougars, among others. On June 16, 2007, the zoo acquired two male Bengal tiger cubs, a royal white and a golden, who were born eight weeks apart in a Florida tiger preserve. The zoo added an additional two cubs in 2009. A glass-walled tunnel called the "Tiger Tunnel" enables visitors to view tigers in close proximity. In 2011, a 370-pound (168 km) tiger was photographed holding his paw up
Hip replacement (animal) treatment afforded older dogs and not usually considered for young and middle aged animals or less advanced conditions. Aftercare recommendations vary also. Some vets recommend as little as 1–2 days in hospital after replacement, others as much as 4–7 days. All vets agree that movement must be restricted for a significant time after surgery. Some suggest that normal activity can be resumed after 5 weeks, others state it is unsafe until after 8 weeks. In both cases, a cautious approach will probably do no harm, if there is doubt. The first feline hip replacement in the New York area was