Squirrels will make alarm sounds when a model of an owl is placed in their territory. When a red block the same size of the owl is placed in the territory, the squirrel does not alarm. What can you conclude from these observations?

The squirrels are attuned in their brains to understand that owls are a threat because it is a predator. This is visual stimuli that evolved over many years to elicit a conditioned response. This is an innate behavior (meaning that it has been pre-programmed into an animal's genes) and offspring are naturally born with it.