Finally, science explains that doggy smell

WE ALL know how wet dogs smell, but what causes the odor? The American Chemical Society explains that when water hits your dog's skin or fur, it mixes with the yeast, bacteria and oils on it, breaking down the chemical bonds and releasing that oh-so-distinctive houndy smell. When they are liberated, the organic, volatile molecules spring into the air and travel straight to your nose, causing it to wrinkle with dismay. So, giving your dog a bath may cause him to stink temporarily, but once he's dry, you can happily bury your nose in his fur.

*  Exotic pets have special needs. For instance, did you know that guinea pigs are prone to heatstroke? It's important to keep them in temperature-controlled areas. Chinchillas are highly active and need plenty of room to run and jump. Chinchillas are nocturnal, so they also appreciate a nice hidey-hole where they can sleep during the day. In both species, signs of illness include loss of appetite, less poop in their cage, increased respiratory rate, sneezing, a runny nose or eyes, tooth grinding, drooling and lumps or swollen areas.