All the things that we can sense have their origins in the PERIPHERAL NERVOUS SYSTEM.
The peripheral nervous system is made up of all the nerves that are located outside the spinal cord. These nerves transport information to and from the central nervous system. The sensory cells are involved in carrying information from the peripheral nervous system to the central nervous system. The sensory cells include the cells that are responsible for sight, sound, smell, taste and pressure.<span />
You times all of them together and you would get the answer
They died, because the divo's only food died and because of the cold. they cannot grow thicker fur in a year, they cannot change their diet drastically, they cannot just learn to hibernate and they are not used to digging.
With hosts they can. But not on a place like dry pavement. They like something wet.