Instead, he says a pterosaur used all four limbs, leapfrogging forward on its knuckles, to propel itself into the air.
The country's consumer culture is leapfrogging its own unique path.
ALTHOUGH most rich countries, and some leapfrogging poor ones like India, are adopting electronic medical records, doctors' surgeries in America still mostly do things the old-fashioned way.
The success of Japanese catching-up by raped the advanced technical fruits of developed countries can provides lots of reference for technology leapfrogging of China.
The past year has been a bumper one for international leapfrogging in all sorts of league tables—and usually it was team America that got thrashed, more often than not by China.
If that is the case, then poor countries should be able to go straight from agriculture to services, leapfrogging manufacturing.
Packaging improvements and sales have been leapfrogging each other recently.
