The behemoths, known as Bonnerichthys gladius and Rhinconichthys taylori, grew to 30 to 50 feet long and occupied the ecological niche now filled by whales and whale sharks.
这两种庞然大物被称为“Bonnerichthys gladius”和“Rhinconichthys taylori”，体长有30到50英尺，它们曾经在生态系统中的位置现在已经被鲸类和鲸鲨所取代。
The physical structure of species competing for resources in the same ecological niche tends to gradually evolve in ways that allow them to occupy different niches.
争夺同一生态资源的物种趋向于朝着依赖不同资源的方向进化；而相互竞争的物种会逐渐改变他们的活动范围，使其领地不再重叠。
"Life on Earth has radiated into every conceivable - and in some cases almost inconceivable - ecological niche," says Chris Impey of the University of Arizona in Tucson, US.
“地球上的生命已经涉足所有可想象的——某些情况下几乎不可想象的——生态环境。”美国图森市亚利桑那州大学的Chris Impey说。
应用推荐