Red and brown algae are found only in saltwater and are also called seaweed. Did you know that algae of all four types have been a food source for people for at least 14,000 years? For example, the ...

Multiple species of brown algae (class Phaeophyceae), for example, have evolved over time from a male/female binary into co-sexual hermaphrodites. Susana Coelho, a biologist at the Max Planck Research ...

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 ...