1、Our understanding of the umwelt of different species has grown significantly in recent years.
最近几年，我们对不同物种的感知世界有了更深入的了解。
2、Each animal has its own umwelt, shaped by its unique sensory perceptions and experiences.
每个动物都有自己独特的感知世界，这是由其独特的感知和经验所塑造的。