Leather mudweed (Avrainvillea lacerata) blades emerging from coarse sand at Maunalua Bay, O'ahu, Hawai'i. Credit: SA Krueger-Hadfield Algae don't get the credit or attention they deserve. They are ...

The patches of lichen you’ve probably seen growing on tree trunks and park benches might be easy to overlook, but they’re actually some of the world’s strangest living things. While they're sometimes ...