All of this is controlled by the endocrine system, the system in charge a lot of our body's processes, from cell and tissue growth and repair to reproductive function and mood regulation.
Scientists then take blood and tissue samples as well as DNA from the panther to monitor its health and reproductive viability.
然后，科学家再从豹身上提取血液和组织以及DNA样本，监测其健康和生殖发育能力。
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The initiation of puberty re quires certain amount of body weigh or body fat stored. Leptin may be a special metabolism signal fatty tissue sends to the reproductive system.