A cannonball explodes. Cannonballs, in themselves, do not explode.
The diamond of ice is not cold to the touch. It doesn't melt until Vangore stands before Bakaar, then it melts entirely away in an instant.
Flying squirrels don't actually fly. They coast on the air. The closest flying squirrel species to ancient Arabia would be the Siberian flying squirrel, which is light gray rather than the rich brown of species from the Americas that Bez transforms into.