It has long been believed that sharks do not slumber at all; the notion that certain sharks must remain active in order to breathe has led to this belief. Nevertheless, a recent study verifies what circumstantial evidence and previous studies ...
It has long been believed that sharks do not slumber at all; the notion that certain sharks must remain active in order to breathe has led to this belief. Nevertheless, a recent study verifies what circumstantial evidence and previous studies ...