I can’t login to facebook in dragonvale

The comments above have said that notifications are working fine for them. They are working for me, also. So it's probably an issue with your phone. The basic troubleshooting is to reset, restart, restore.

• To reset, hold both the home button and the sleep/wake button until the apple logo comes up.

As for restarting and resetting, you should probably know how to do that.

Make sure the notifications are turned on after you reset/restart/restore.

Settings - Notifications- Sort Manually- Dragonvale- Notification Center [ON]

While there are three types of Olympus Dragons, all three seem to be the same combination of elements: Air, Earth, Lightning and Fire. This makes -many- different dragon combinations possible as long as they posses those four elements.

When properly bred all three types appear to have the same breeding time for 35 hours.

This information was taken from the appropriate wiki pages for the Bronze, Silver and Gold versions of the Olympus dragons.