Number Train is perfect for introducing counting concepts to little ones during tummy-time play, with Fisher-Price's fun Rainforest Friends to count and a mirror adding an extra interactive element. Animals features 10 key line characters to colour in and name. Number Train is perfect for introducing counting concepts to little ones during tummy-time play, with Fisher-Price's fun Rainforest Friends to count and a mirror adding an extra interactive element. Animals features 10 key line characters to colour in and name.