Introduction to the algae -- Organization of the algal organisms -- Methods of study and nutrition of algae -- Reproduction in algae -- Classification of algae -- Illustrative algal organisms -- ...

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 ...

At first glance, tiny flatworms called acoels seem pretty simple. Their few internal organs drift freely in their shapeless bodies, which lack even a digestive tract. Study co-author Bo Wang and his ...