啄木鸟敲击是全身运动

The birds exhale with each strike, much like a tennis pro groaning through a stroke. Elaborate coordination between those breaths and muscles across the body keep the hammering at a perfectly consistent rate, researchers report in the Journal of Experimental Biology. Research into the extraordinary abilities of woodpeckers — which can strike hundreds of times per minute at forces 20 to 30 times their body weight — has largely focused on how they’re able to percuss without getting concussed. The new analysis simply asks how, at all? …