Swimming with a sleek blue shark underwater
The first time I saw a blue shark underwater, I realized that everything I thought I knew about shark aesthetics was completely wrong. Most of us grew up watching documentaries featuring the bulky, brownish-grey silhouette of a Great White or the stout frame of a Bull shark, but the blue is a totally different beast. It doesn't look like a tank; it looks like a high-end sports car. It has this incredible, indigo-blue back that seems to vibrate against the deep sapphire of the open ocean, and its body is so slender and elongated that it almost looks delicate—until you see it move. ...