Beta Animal Jam was not to different from today's Animal Jam. There were only 6 animals (Monkeys, Wolves, Bunnies, Tigers, Pandas, and Koloas.) there was no trading, and there was no underwater. Aside from a few changes the lands looked the same. People claim the old AJ was more fun, but this only an opioion and not fact. Currently, Animal Jam has been around for 4 and a half years.
The four lands that were available during beta testing were Jamaa Township, Sarepia Forest, The Lost Temple of Zios, and Crystal Sands. Coral Canyons was added as a gift to jammers to mark the end of beta testing. Back then, Crystal Sands was a rocky beach instead of a water park and Tienry's Theater and aquarium didn't exist. It was renovated in 2010 or 2011 into the sliding zone you know today. In the Temple of Zios, there was a monkey statue where the Zios Mask Pit is today.