Most people assume that Vietnam weather is always warm. It is hard to imagine but we have a pretty cold winter here in Northern Vietnam, especially in Cuc Phuong rainforest which has its own micro-climate. Days have just started to get colder here and if you have a closer look you can notice it is affecting our Lorises who are also getting prepared for winter!

Before the end of autumn, they start eating a lot and gain weight. They need to do so because during the next very cold days they will fall into a torpor and stop eating, sometimes even for several days. Which results in a significant variation of weight from one season to another. As an example, Pygmy Lorises can weigh up to 500g or even more just before winter and drop down to only 300g in spring.

Another striking observation is the difference in their fur appearance. The important variations along the seasons confused the scientists in the past. Not so far from now, twenty years ago, there were three known Loris species in Vietnam: