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 ...

Rust-colored water is caused by algae which is also responsible for the blue glow known as bioluminescence -- but there is a ...

Independently evolved brown algae develop this way ... drawings in 1874 comparing the embryonic stages of species such as fish, chicken and humans 2. These demonstrate an initial similarity ...