A robot taught these birds a long-lost birdsong
The song of the chingolo can be heard across South America. But young songbirds were no longer learning the tunes of their ...
Phys.org1 个月
When birds lose the ability to fly, their bodies change faster than their feathers ...
These findings help shed light on the evolution of complex traits that lose ... birds' bodies change when they evolve semi-aquatic lifestyles. Penguins, for instance, can't fly, but they swim in a ...