Sidewinder snakes most likely phased out the spikes along their bellies in favor of a smoother belly that can move with no frictional drag. Rob Felt, Georgia Tech Sidewinder snakes are venomous ...
Most snakes get from A to B by bending their bodies into S-shapes and slithering forward headfirst. A few species, however -- found in the deserts of North America, Africa and the Middle East -- have ...