Time is directional, and problems flow from the past to the future. This is the arrow of time. In the process of biological evolution, the past and the future of time are asymmetrical, which is an irreversible process. But the time arrow and entropy increment of biological evolution are different. Increase in entropy means degradation, that is, the decomposition and decay of old things; while evolution is the industry and development of new things, and its time arrow points to the decrease in entropy.
So
Biological evolution takes a short time in the past and a long time in the future