Are brains over-rated? After all, jellyfish lack them, yet carry out sophisticated functions and a complex reproductive cycle. Their lack of a nervous system control center even confers some advantages, such as the ability to lose a chunk here and there with little harm done.
Just after sunset in early August, divers descend into inky black waters of the Gulf of Mexico, 100 miles from shore. The beams of their dive lights pierce the darkness, illuminating a large coral mound, its textured surface covered in tiny white dots. At some unseen signal, the dots begin to rise toward the sea […]
If you hit the beach recently in the Caribbean or Gulf of Mexico, you may have encountered piles of stinky seaweed. This is what’s known as a sargassum bloom.