原文开头
A SIMPLE unicellular organism with no brain seems capable of an advanced form of learning. The simplest form of learning, known as habituation, is gradually reducing how much you respond to a repeated, harmless stimulus, like a smell or noise. It is common across all animals and has also been demonstrated in some protists, which have complex eukaryotic cells like animals, land plants and fungi, but are generally single- celled organisms, including the trumpet-shaped Stentor coeruleus. More difficult is learning to connect different types of events, and predicting that one is linked to another. …
摘自《新科学家》(New Scientist)第3587期 · 2026年3月21日,Chris Simms。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。