Ants and birds help to spread out seeds by acting as gardeners

When you decide that you want to live in another place, you just pack and go. This may sound simple for animals, but it is not a feasible task for plants. For the large majority of plant species, individuals establish themselves early in lifetime (in the form of seeds) in definite sites. Their chance of…

What controls how the Earth’s tectonic plates are fragmented?

If you look at the shapes of the continents you’ll see that, similarly to puzzle pieces, they seem to fit. In the early 20th century, the geologist Alfred Wegener also realised that and he was convinced that this feature couldn’t simply be a coincidence. Then he couldn’t quite explain this property but later, in the…

Why have birds survived when dinosaurs went extinct?

Did you know that more than 90% of all species that have ever existed on Earth are extinct? Our planet has already passed through five big mass extinction events. After each of these events, almost all living organisms vanished at once. The organisms that survived were able to occupy and re-colonize the new environment, creating…