Sofia Zoo marmoset, and macaques. The predator sector houses big cats, bears and small predators, including lions, tigers, leopards, pumas and brown bears. In January 2011 the zoo received eight Humboldt penguins on loan from Germany. The penguins are on loan for about 18 months, after which they will be returned, with any offspring to stay at the zoo. The zoo has some 1,400 individual birds representing 192 species. Waterbirds are housed in a lake, and Imperial eagles, Griffon vultures, Egyptian vultures and buzzards in a large walk-through aviary. Other species of birds at the zoo include ostriches, Silver pheasants, peacocks, flamingos,
Hip replacement (animal) down. So animals must be prevented from over exercise, or from climbing, jumping or putting any strain whatsoever beyond gentle use, on the joint. The animal must also be kept away from slippery or smooth flooring such as tiles, marble or polished wood since these put considerable lateral (sideways) strain on the hips. This can be a difficult process for a dog as many usual behaviors must be strictly prevented for this period. A pet crate may be a sensible precaution, if in doubt. Usually, in the case of a double replacement (both hips), whenever possible one hip is operated