Question

Is lichen dangerous to humans?

Answer 1

Lichen:

1. Lichen is a symbiotic relationship between fungus and algae.
2. Not all lichens are dangerous to humans.
3. Some species of lichen such as Bryoria are eaten by humans and animals.
4. On the other hand, some species such as wolf lichens are poisonous and were used by some Native American tribes to poison their arrowhead.
5. So, lichens can be useful as well as dangerous to humans.