Learn how Miocene fossils from the Mojave Desert reveal that pronghorn running adaptations developed long before high-speed cheetahs appeared in North America.

What is it about a cheetah's build that enables it to run so fast? What gives the wolf its exceptional endurance? While these questions can be partly answered through animal experiments, many ...

American pronghorns evolved speed millions of years before cheetahs, helping movement and survival in changing landscapes.

DARPA and Boston Dynamics have broken their own legged-robot land speed record: Cheetah, which set a record of 18mph earlier in the year, has now been clocked at 28.3mph (12.6m/s) -- faster than Usain ...