A lightweight robot modeled on diving birds can swim underwater, break through the surface, and continue flying without using feet or propellers. The feat exposes a difficult mechanical compromise ...

Flapping-wing micro air vehicles (FWMAVs) are characterized by their compact size, lightweight design, and high maneuverability, making them highly practical for various applications. However, the ...

Loons, gulls, puffins, and petrels are some of the 100 species of birds that can both fly and swim. These diving birds can plunge in water to swim after prey, and then leap back into the air to fly ...