Is a behavior in which animals move toward or away from a light source.

Similar to plants, animals also dislike too much exposure from light. The presence of light makes the animals move away from the source, this phenomenon is called phototropism. Some animals are incapable of resisting the light and can differentiate in advance how to behave during this situation. Phototropic creatures have a physical mechanism that does not allow them to be repulsed or drawn towards the light.