Putting researchers in the field, publishing field guides,
and managing historic specimen archives since 2003
Common Brown Seaweed Blades Part 1
by Jordan Chalfant
Seaweed Map
An interactive map to explore the distribution of seaweed species in Maine.
Nature Notes: A Maine Naturalist Afield
A 5-minute, spoken-word program produced by MNHO staff that discusses Maine natural history topics.
The winter issue of the Observer has been published!
Brown Creeper, Cave Swallows, Metaphyton, Seaweed, Barred Owl, and Hologram Moth.
Featured Project Updates
MNHO will be at the Common Ground Fair from September 20-22!
17 September 2024 We’re excited about attending the upcoming Common Ground Country Fair from September 20-22! If you are going to be there, come and say hello to us in the Environmental Concerns tent. We’ll be offering a special Fair rate ($5 off) to folks becoming first-time MNHO members and we’ll be selling used books about all things natural history […]
Join MNHO today
Learn about Maine species, support our work, and enjoy exclusive content and benefits.
Free Digital Guides
Specially designed for beginning and intermediate naturalists, these mini-guides distill the decades of experience that enable professional naturalists and biologists to recognize a species by observing just a few key characteristics.
Projects
Tools
Seaweed Map
An interactive map to explore the distribution of seaweed species in Maine.
Maine Biota Project
An interactive online resource to catalog all living species in Maine.
Mini Guides
Free mini-guides designed to distill the decades of experience that enables professional naturalists and biologists to recognize each species by observing a few key characteristics.
Observer Field Journal
An online natural history journal that features Maine-based natural history observation, musings about the natural world, reflections from amateur or professional field studies, and much more!
Island Plants Map
This map is the culmination of decades of Maine island vascular plant data from published lists, unpublished lists, herbarium vouchers, and the fieldwork done by Observatory staff over the last 30 years.
Photo by Logan Parker