Explain why it would be impossible for a gorilla the size of King Kong to have fur. (Your answer should explain how the surface area to volume ratio of a normal-sized gorilla would compare to Kong's; relate this to the role of surface area and volume in heat generation and heat transfer, and consider the function of fur.)

Key Concepts

Surface Area to Volume Ratio

The surface area to volume ratio (SA:V) is a critical concept in biology that describes how the surface area of an object compares to its volume. As an object's size increases, its volume grows faster than its surface area, leading to a lower SA:V ratio. This ratio affects various physiological processes, including heat exchange, as smaller animals lose heat more quickly due to their higher SA:V ratio compared to larger animals.

Heat Generation and Transfer

Heat generation in organisms is primarily a result of metabolic processes, while heat transfer occurs through mechanisms such as conduction, convection, and radiation. In larger animals, like a hypothetical giant gorilla, the lower SA:V ratio means that heat generated internally would not dissipate as efficiently as in smaller animals. This can lead to overheating, as the volume of body mass generates more heat than the surface area can effectively release.

Function of Fur

Fur serves multiple functions, including insulation, protection, and camouflage. In terms of thermoregulation, fur helps to retain body heat in smaller animals by trapping air, which acts as an insulator. However, for a very large animal like a King Kong-sized gorilla, the insulating properties of fur would be less effective due to the increased body mass and reduced SA:V ratio, making it difficult to maintain a stable body temperature without overheating.