04/11/2010 05:12 am ET Updated Dec 06, 2017

Left Behind: The Problem of Abandoned Pets (PHOTOS)

Every year, irresponsible pet owners abandon animals that they no longer want. The reasons may be financial or practical, but either way, these innocent animals suffer. They may also cause harm. Abandoned animals overrun shelters and wreck havoc on non-native ecosystems. These nine fascinating stories of abandoned pets show why it is so important to always find unwanted pets a good home.