The theory of evolution explains how the enormous variety of life could come into existence. How it is possible for primitive life forms to spawn the millions of different creatures, that exist today.
What causes addiction? Easy, right? Drugs cause addiction. But maybe it is not that simple.
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.
Dom Burgess investigates whether we could clone humans in the future.
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.
Life on this planet is based on cells. Cells do vary in size. But they are pretty similar in their dimensions across all species. A blue whale doesn’t have bigger cells than a hummingbird, just a lot more of them.