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This Concept Map, created with IHMC CmapTools, has information related to: Dog Sensory Systems Final, Hearing with the Internal Control Mechanism, Internal Control Mechanism being they have a and broader frequency range than humans (with some ultrasonic hearing) (with some hearing below the human range = "infrasonic" hearing), less well developed than humans (2) (same 2 as for cats) including Color Vision, Crepuscular / Night Vision with the Internal Control Mechanism, air (with chemicals) above the bone allowing for small "sniffs" to capture the chemicals (not deep inhalations, needed by humans), Adaptive Function / Current Utility being increased survival & reproduction (when smelling pheromones), less well developed than humans (2) (same 2 as for cats) including Taste, specific taste buds for sweetness causing trouble when they eat chocolate, adaptation to low light levels allowing for increased ability to hunt in low light, dogs can't metabolize theobromine as well as humans leading to increased heart rate, lethargy, possible seizures, organ failure, Long nose dogs with wider "visual streak" (foveal region), the ability to easily & rapidly move their ears allowing dogs to pinpoint the location of a sound faster than humans (and also possibly faster than cats), Adaptive Function / Current Utility being adaptation to low light levels, specific taste buds for sweetness detecting furaneol, present in fruits and vegetables, Dog Sensory Systems are better developed than humans (3) (similar to cats), Adaptive Function / Current Utility being increased ability to hunt, high density of nerve endings on the retina allowing for more detailed images similar to human's field of vision, Smell with the Adaptive Function / Current Utility, dogs have two types of cones ("dichromatic vision") rather than three types of cones ("trichromatic vision") allowing sensitivity to blues and yellowish green, increased ability to hunt in low light increasing survival