Almost all animals have symmetrical bodies. Bilateral symmetry is almost universal in all animals and is only very rarely broken—with exceptions like the five-armed starfish or crab species that have ...

Fossils of the bilaterian Ikaria wariootia found in South Australia represent one of the oldest examples of an organism with anterior and posterior differentiation, according to a study. During the ...

Women have more orgasms during sex with men who are more symmetrical. Does this penchant for order cloud our ability to see the universe accurately? A new book by theoretical astrophysicist Mario ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Peter Watson: That was an accident of history. When I was choosing a project for my PhD I wanted to ...