There’s a new branch on the tree of life and it’s made up of predators that nibble their prey to death. These microbial predators fall into two groups, one of which researchers have dubbed “nibblerids ...

Trees in nature follow a “self-similar” branching pattern called a fractal, in which the same structures repeat at smaller and smaller scales from the trunk to the branch tip.

The researchers found that people often summarize entire episodes of a story into single sentences, leading to the conclusion that narratives are stored in memory as tree structures. In this model, ...