Rachel Allavena writes a Conversation piece, which has been republished  on the ABC News Site: "Companion animals are part of our families, but inevitably the time comes for us to say goodbye to them due to old age or disease."  Many pet lovers opt to bury their pets in the backyard. However, there are some hidden risks to this, and there are other options that will help other pets, and even the owners who love them.

 She explains why the backyard isn't the best option, and speculates what to do instead.

Rachel Allavena is an associate professor at The University of Queensland. Her article originally appeared on The Conversation.