W. Scott Persons IV and John Acorn, in their paper “A Sea Scorpion’s Strike: New Evidence of Extreme Lateral Flexibility in the Opisthosoma of Eurypterids,” appearing in the July 2017 issue of The ...

There’s a reason why beginner, intermediate, and advanced are terms people use to describe movement practices: there are levels to fitness. Out of all the ways to move your body, yoga probably tops ...