Why do animals form swarms? – Maria R. D’Orsogna

When many individual organisms come together and move as one entity, that’s a swarm. From a handful of birds to billions of insects, swarms can be almost any size. They have no leader, and members interact only with their neighbors or through indirect cues. Members follow simple rules: travel in the same direction as those around you, stay close and avoid collisions. Maria R. D’Orsogna shares why.

Why We Pick Difficult Partners

In theory, we’re nowadays allowed to get together with pretty much anyone we like. And yet, at a psychological level, we aren’t free to love just any suitable person. We have a type – and strangely and awkwardly, these types are often not those who stand a chance of making us maximally happy.