Six species of swallowtail butterflies occur locally, and they combine yellow, black, orange, blue and red in several diverse patterns that invariably catch the eye. We can marvel at them, but our ...

A new study by researchers at the University of Wisconsin–Madison provides the first empirical evidence connecting the ...

From mesmerizing symmetry of spiraling sunflower seeds to mirror-like sides of the human body, patterns dominate nature. Aesthetic appeal aside, what advantage does repetition afford? The question ...

1. Variation in the strength of age-dependent natural selection shapes differences in ageing rates across species and populations. Likewise, sexual selection can promote divergent patterns of ...

Discover interesting facts about how evolution works, the different patterns that can emerge from evolution, how quickly organisms can evolve, and whether evolution is a random or ordered process When ...

Habitat selection studies conducted at the population scale commonly aim to describe general patterns that could improve our understanding of the limiting factors in species–habitat relationships.

An unusually cold winter in the US in 2014 took a toll on the green anole lizard, a tree-dwelling creature common to the southeastern United States. A new study offers a rare view of natural selection ...

Natural selection is the process by which some organisms in a population survive and reproduce, while others do not, based on their bodies and behaviour. It is one of the processes by which species ...