A new study led by scientists at the University of California, Berkeley has shed new light on how seabirds are able to cruise through the air and water with such grace and efficiency. The study, which was published in the journal "Nature", reveals that seabirds use a unique combination of aerodynamic and hydrodynamic forces to achieve their remarkable aerial and aquatic feats.

One of the key findings of the study is that seabirds have specially adapted wings that allow them to generate lift and thrust in both air and water. These wings are long and narrow, with a high aspect ratio, which means that they are more efficient at generating lift than the wings of other birds. In addition, seabirds have a unique wing shape that creates a vortex of air over the wing, which helps to generate additional lift.

The study also found that seabirds use their tails to help them maneuver and control their flight. The tails of seabirds are long and flexible, and they can be used to change the direction of the bird's flight or to provide stability. In addition, seabirds use their tails to help them land and take off from the water.

The researchers also discovered that seabirds have a unique way of swimming. Seabirds use their wings to propel themselves through the water, and they use their feet to steer and control their movement. The wings of seabirds are well-suited for swimming, as they are long and narrow, with a high aspect ratio. In addition, seabirds have a unique foot structure that allows them to grip the water and propel themselves forward.

The findings of this study provide new insights into the remarkable adaptations that allow seabirds to cruise through the air and water with such grace and efficiency. These adaptations are a testament to the evolutionary success of seabirds, and they have inspired engineers to design new aircraft and watercraft that are more efficient and environmentally friendly.