After nine months, the strange behavior that claimed the lives of endangered sawfish is back. Here’s what we know about ...

Have you ever seen brown or green goo floating on a river or in the ocean? Or have you noticed how the walls of a fish tank sometimes turn green and slimy? These are all examples of algae—but there is ...

The most common culprits are dinoflagellates ... just as plants grow more vigorously with added nutrients, so too do algae in nutrient-rich waters. However, this nutrient overload can upset ...