Animals curl into a ball, when they feel very cold. Why?

1.	Animals curl into a ball, when they feel very cold. Why?
Answer» Solution :(d) When the animals feed cold, they curl their bodies into the ball so as to decrease the surface area of their bodies. As total energy RADIATED by a body VARIES directly as the surface area of the body, the loss of heat due to radiation would be reduced. (e) Normal human body TEMPERATURE (T) = `98.6^(@)F` Convert Fahrenheit into Kelvin, `(F - 32)/(180) = (K - 273)/(100)` So, `T = 98.6^(@)F = 310K` From Wien.s displacement law Maximum wavelength `lamda_("max") = b/T = (2.898 xx 10^(-3))/(310)` `lamda("max") = 9348 xx 10^(-9) m` `lamda("max") = 9348 "nm" (at 98.6^(@)F)` During HIGH FEVER, human body temperature `T = 104^(@) F = 313K` Peak wavelength `lamda_("max") = b/T = (2.898 xx 10^(-3))/(313)` `lamda_("max") 9259 xx 10^(-9) m` `lamda_("max") = 9259` nm (at `104^(@)F`) (f) When animals feel cold, they curl their bodies into the ball so as to decrease the surface area of their bodies. As total energy radiated by a body varies directly as the surface area of the body, the loss of heat due to radiation would be reduced.

Discussion