Posted by: Rebecca Whitham, Communications The two endangered snow leopard cubs are one month old today, and we took some new photos this morning to document their growth. Check out the full photo album from this morning's session on Woodland Park Zoo's Facebook fan page . Become our Facebook fan to get automatic zoo updates in your Facebook news feeds. The two cubs remain behind the scenes with their mother while they bond and grow, but stay tuned to the blog for more updates on the duo. Photo by Ryan Hawk.