在二十世纪，另一生物学家在检查了该物种的头骨后亦提出了同样观点。
In the 20th Century, other biologists made similar comments after examining skulls from specimens of the species.
依生物进化的观点来看，生物学家们长期以来都认为，多样化的生物种群才是健康的。
Biologists have long known that, from an evolutionary point of view, a diverse population is a healthy one.
依生物进化的观点来看，生物学家们长期以来都认为，多样化的生物种群才是健康的。
Biologists have long known that, from an evolutionary point of view, a diverse population is a healthy one.
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