I've been known for giving younger members advise on 'do's and don't's' on Zoochat in the past, so here goes:
You should use this forum as a last resort for information unavailable from anywhere else, or at least hard to find. This is the Information Age and most zoos update the news sections of their websites frequently. Kids your age are almost all fluent with the use of Internet; while I had barely touched a computer before the age of 15!
Most of us here are older than you and busy with school and work, so in the end your threads will simply be ignored, regardless of the content. While we like to be of help to fellow Zoochatters, replacing independent thinking and information search is not something any of us wants to do.
I know you're young, but animals are born and they die too. Both are as natural. Provided there is nothing suspicious or odd about their death, I would say it's nothing that calls for the 'sorrow' sign, really.