Summarize a scientific article
Mammalian hibernation is a complex process regulated by a variety of hormones and metabolic changes.
The article explains how hibernation in mammals is regulated by multiple hormones and involves a range of metabolic changes.
Complete the following task based on the instruction and optional input provided.### Instruction:
Summarize a scientific article

### Input:
Mammalian hibernation is a complex process regulated by a variety of hormones and metabolic changes.

### Output:
The article explains how hibernation in mammals is regulated by multiple hormones and involves a range of metabolic changes.