It used to be thought that the dog-like marsupials of Australasia, the thylacines, were close kin of borhyaenoids, but anatomical and molecular data shows that this is not the case: thylacines are part of the exclusively Australasian marsupial clade that includes the dasyures.
Having the right body temperature is an essential feature of good health. A low body temperature indicates that you may be unwell and have some health problem. Low body temperature can cause you a number of problems such as fatigue, depression, anxiety and panic attacks, cold intolerance, insomnia, constipation, and more. 98.6 Â°F or 37 Â°C is considered to be normal body temperature. It could however vary between 97.5 Â°F to 98.8 Â°F (36.4 Â°C to 37.1 Â°C) for most individuals.
Otherwise you have to keep them above freezing temps or lower the freezing temp of the water. That means keeping them warm enough to stay above 32F with a housing/heating arrangement or adding something like alcohol to lower the freezing point of the solution.