课程包括生物化学，鸟类生物学和营养，食品科学和技术，人类和动物的健康与安全等。
Classes cover biochemistry, bird biology and nutrition, food science and technology, and human and animal health and safety.
因此，关于鸟类的起源、恐龙和早期鸟类的生物学特性等一系列未解之谜都笼罩在困惑之中。
Confusion consequently reigns over a broad spectrum of unanswered questions dealing with avian origins and the biology of dinosaurs and early birds.
不过《当代生物学》杂志上的一项研究却表明，在冬季向鸟类投食可能会影响到它们的进化进程。
But a study in the journal Current Biology suggests that feeding birds in winter can influence their course of evolution.
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