mud

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. There was a time long ago…

Get the Popular Science daily newsletter💡 Mosasaurs were some of the most fearsome apex predators to ever stalk the Cretaceous…

Many quadrupedal robots can adeptly handle uneven or sloped terrain, but only if the ground beneath them is relatively stable.…