A salamander is a creature, that looks like a lizard, but isn't.
Earlier it was also a serpentine symbol of the fourth element: Fire.
Details in these animations change, as time goes by, mutating slowly but automatically.
Some also offer mouse control: moving horisontally or vertically changes the larger structure.
These animations contains many elements and layers, so may take time to initiate. But patience is still a rewarded virtue...