pineal eye

例句：

1. 1. The pineal gland is responsible for producing melatonin, which regulates sleep and wake cycles.
   松果体负责产生褪黑激素，调节睡眠和觉醒周期。
2. 2. Researchers have found that the pineal gland can be influenced by stress hormones, affecting mood and cognitive function.
   研究人员发现，松果体可以被应激激素影响，影响情绪和认知功能。
3. 3. In some species, the pineal gland plays a role in thermoregulation, allowing animals to adapt to varying temperatures.
   在某些物种中，松果体在体温调节方面发挥作用，使动物能够适应不同的温度。