A novel system that chases larval zebrafish around an arena with predator robots is enabling scientists to understand how these days-old fish quickly learn in the real world. A novel system developed ...

Imagine you’re a Japanese eel, swimming around just minding your own business when—bam! A predatory fish swallows you whole and you only have a few minutes to make your escape before certain death.

Over the last century, die-offs of animal populations, known as mass mortality events (or MMEs), have increased in frequency and magnitude. The scale of these events can be staggering: billions of ...