![Heliotropism leads to uniform eastward orientation of mature sunflower plants.](https://imagenes.elpais.com/resizer/v2/RXXSIH56XBHN5H75OK3TMANNMI.jpg?auth=00700fc0798b937a7c2861c5b444c9c371e6e055e63cbdb2242a59452a799375&width=414&height=311&focal=1292%2C1044)
How sunflowers follow the sun from day to day
A study delves into the behavior of these plants and challenges earlier assumptions about their dependence on sunlight
A study delves into the behavior of these plants and challenges earlier assumptions about their dependence on sunlight
Fibrous ‘pads’ on the vocal cords allow them to emit low-frequency sounds, although the scientific debate has not been closed
In her latest book, geologist Mercedes Ferrer describes the most significant tsunamis in history, their causes and how to identify them
A study shows this species’ strategies for surviving violent male mating tactics