Philosophy Meets Neuroscience: The Molyneux's Problem
A child's mind is certainly not tabula rasa; language acquisition patterns in children suggest that they have an inborn module for it — domain-specific and, while flexible, clearly incompletely flexible.

The children would probably have the same troubles with constructions of spiders and snakes; the modules that we are said to have for those species concern our prepared learning to fear these organisms, not our identification of them.

Even if the modules did concern identification rather than fear, the fact that the inborn modules do not constitute inborn abilities or tendencies. Experiences must still be had with the snakes, spiders, etc for fear to be acquired.