I checked the Belize Zoo website but can only seem to find annual membership fees. Does anyone know how much daily admission is for adults and children at the zoo? And do you recommend visiting it?

According to:
http://www.belize-vacation.com/belize/belize-Zoo.htm

admission is "about $7.50 US"

BUT - http://www.travelbelize.org/zoo.html says $5.00 US

Thanks for the quick response!

The zoo is fantastic. The animals in general are more active in the early morning hours, the cats (jaguars etc.) tend to hide and sleep during the mid-day heat - so try to go early when they are being fed and are out playing.

Or just before they are closing when they are all out waiting to get fed.