Is goodwill enough to keep animal welfare groups running in the face of slowing adoption and rising costs?   SINGAPORE: At first glance, empty cages at the Society for the Prevention of Cruelty to Animals (SPCA) may seem like good news. Their occupants may have gone on to their forever homes. But they may also point to a less visible reality – that more animals are being housed elsewhere in the facility, requiring intensive or ongoing treatment.  Some of these facilities operate at near-full