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September 2025

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01

02

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04

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06

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
06

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/06/jack-joseph-and-morton-mandel-community-days

07

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
07

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/07/jack-joseph-and-morton-mandel-community-days
2:00 PM – 3:30 PM
Mentor Marsh Guided Nature Hike: Butterfly (Bug) Hunt!
07

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Butterfly (Bug) Hunt!

Join us on a search for monarchs, skippers, dragonflies, damselflies, bees, wasps, and more.

/explore/calendar/2025/09/07/mentor-marsh-guided-nature-hike-butterfly-bug-hunt

08

09

10

11

7:00 PM – 8:00 PM
The Science of CRISPR with Dr. Jennifer Doudna
11

Thursday
September 2025
7:00 PM – 8:00 PM

The Science of CRISPR with Dr. Jennifer Doudna

This event is sold out.

/explore/calendar/2025/09/11/the-science-of-crispr-with-dr-jennifer-doudna

12

13

8:00 AM – 12:00 PM
Mentor Marsh: Second Saturday Science
13

Saturday
September 2025
8:00 AM – 12:00 PM

Mentor Marsh: Second Saturday Science

Explore the wild western end of Mentor Marsh State Nature Preserve with a Museum naturalist.

/explore/calendar/2025/09/13/mentor-marsh-second-saturday-science
8:30 AM – 9:30 AM
Planetary Yoga (SOLD OUT)
13

Saturday
September 2025
8:30 AM – 9:30 AM

Planetary Yoga (SOLD OUT)

Bring your mat (and your friends!) and practice yoga under the stars at the Cleveland Museum of Natural History.

/explore/calendar/2025/09/13/planetary-yoga-sold-out
10:00 AM – 12:00 PM
Friends of CMNH Science Series | The Mystery of the C.B. Lockwood
13

Saturday
September 2025
10:00 AM – 12:00 PM

Friends of CMNH Science Series | The Mystery of the C.B. Lockwood

How did the Cleveland Underwater Explorers (CLUE) solve the mystery of the final resting place of a Lake Erie shipwreck?

/explore/calendar/2025/09/13/friends-of-cmnh-science-series-the-mystery-of-the-cb-lockwood-
10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
13

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/13/jack-joseph-and-morton-mandel-community-days

14

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
14

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/14/jack-joseph-and-morton-mandel-community-days
2:00 PM – 3:30 PM
Mentor Marsh Guided Nature Hike: Spiders, Oh My!
14

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Spiders, Oh My!

Join us for an intro to spider biology and adaptations, followed by a rambling hike.

/explore/calendar/2025/09/14/mentor-marsh-guided-nature-hike-spiders-oh-my

15

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19

10:00 AM – 5:00 PM
Headlands Birding Festival
19

Friday
September 2025
10:00 AM – 5:00 PM

Headlands Birding Festival

Join Museum experts and partners as we celebrate the amazing diversity of birds in the Headlands/Mentor Marsh region.

/explore/calendar/2025/09/19/headlands-birding-festival

20

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
20

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/20/jack-joseph-and-morton-mandel-community-days
10:00 AM – 5:00 PM
Headlands Birding Festival
20

Saturday
September 2025
10:00 AM – 5:00 PM

Headlands Birding Festival

Join Museum experts and partners as we celebrate the amazing diversity of birds in the Headlands/Mentor Marsh region.

/explore/calendar/2025/09/20/headlands-birding-festival

21

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
21

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/21/jack-joseph-and-morton-mandel-community-days
10:00 AM – 5:00 PM
Headlands Birding Festival
21

Sunday
September 2025
10:00 AM – 5:00 PM

Headlands Birding Festival

Join Museum experts and partners as we celebrate the amazing diversity of birds in the Headlands/Mentor Marsh region.

/explore/calendar/2025/09/21/headlands-birding-festival
2:00 PM – 3:30 PM
Mentor Marsh Guided Nature Hike: Migration Madness
21

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Migration Madness

Come along on an afternoon bird walk as part of the Headlands Birding Festival.

/explore/calendar/2025/09/21/mentor-marsh-guided-nature-hike-migration-madness

22

23

24

25

26

27

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
27

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/27/jack-joseph-and-morton-mandel-community-days
10:30 AM – 4:30 PM
Ask an Expert
27

Saturday
September 2025
10:30 AM – 4:30 PM

Ask an Expert

Found a fossil or an artifact? Now is your chance to have it evaluated by a Museum scientist!

/explore/calendar/2025/09/27/ask-an-expert

28

10:00 AM – 5:00 PM
Jack, Joseph and Morton Mandel Community Days
28

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

/explore/calendar/2025/09/28/jack-joseph-and-morton-mandel-community-days
2:00 PM – 3:30 PM
Mentor Marsh Guided Nature Hike: Fall Wildflowers
28

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Fall Wildflowers

Come along on a walk to enjoy the seasonal wildflowers in our prairie, woods, and wetlands.

/explore/calendar/2025/09/28/mentor-marsh-guided-nature-hike-fall-wildflowers

29

30

06

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
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Jack, Joseph and Morton Mandel Community Days
07

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
07

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Butterfly (Bug) Hunt!

Join us on a search for monarchs, skippers, dragonflies, damselflies, bees, wasps, and more.

Event Details
Add to FavoritesRemove
Mentor Marsh Guided Nature Hike: Butterfly (Bug) Hunt!
11

Thursday
September 2025
7:00 PM – 8:00 PM

The Science of CRISPR with Dr. Jennifer Doudna

This event is sold out.

Event Details
Add to FavoritesRemove
The Science of CRISPR with Dr. Jennifer Doudna
13

Saturday
September 2025
8:00 AM – 12:00 PM

Mentor Marsh: Second Saturday Science

Explore the wild western end of Mentor Marsh State Nature Preserve with a Museum naturalist.

Event Details
Add to FavoritesRemove
Mentor Marsh: Second Saturday Science
13

Saturday
September 2025
8:30 AM – 9:30 AM

Planetary Yoga (SOLD OUT)

Bring your mat (and your friends!) and practice yoga under the stars at the Cleveland Museum of Natural History.

Event Details
Add to FavoritesRemove
Planetary Yoga (SOLD OUT)
13

Saturday
September 2025
10:00 AM – 12:00 PM

Friends of CMNH Science Series | The Mystery of the C.B. Lockwood

How did the Cleveland Underwater Explorers (CLUE) solve the mystery of the final resting place of a Lake Erie shipwreck?

Event Details
Add to FavoritesRemove
Friends of CMNH Science Series | The Mystery of the <em> C.B. Lockwood </em>
13

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
14

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
14

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Spiders, Oh My!

Join us for an intro to spider biology and adaptations, followed by a rambling hike.

Event Details
Add to FavoritesRemove
Mentor Marsh Guided Nature Hike: Spiders, Oh My!
19

Friday
September 2025
10:00 AM – 5:00 PM

Headlands Birding Festival

Join Museum experts and partners as we celebrate the amazing diversity of birds in the Headlands/Mentor Marsh region.

Event Details
Add to FavoritesRemove
Headlands Birding Festival
20

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
20

Saturday
September 2025
10:00 AM – 5:00 PM

Headlands Birding Festival

Join Museum experts and partners as we celebrate the amazing diversity of birds in the Headlands/Mentor Marsh region.

Event Details
Add to FavoritesRemove
Headlands Birding Festival
21

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
21

Sunday
September 2025
10:00 AM – 5:00 PM

Headlands Birding Festival

Join Museum experts and partners as we celebrate the amazing diversity of birds in the Headlands/Mentor Marsh region.

Event Details
Add to FavoritesRemove
Headlands Birding Festival
21

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Migration Madness

Come along on an afternoon bird walk as part of the Headlands Birding Festival.

Event Details
Add to FavoritesRemove
Mentor Marsh Guided Nature Hike: Migration Madness
27

Saturday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
27

Saturday
September 2025
10:30 AM – 4:30 PM

Ask an Expert

Found a fossil or an artifact? Now is your chance to have it evaluated by a Museum scientist!

Event Details
Add to FavoritesRemove
Ask an Expert
28

Sunday
September 2025
10:00 AM – 5:00 PM

Jack, Joseph and Morton Mandel Community Days

Free Saturday and Sunday admission for residents of selected local cities!

Event Details
Add to FavoritesRemove
Jack, Joseph and Morton Mandel Community Days
28

Sunday
September 2025
2:00 PM – 3:30 PM

Mentor Marsh Guided Nature Hike: Fall Wildflowers

Come along on a walk to enjoy the seasonal wildflowers in our prairie, woods, and wetlands.

Event Details
Add to FavoritesRemove
Mentor Marsh Guided Nature Hike: Fall Wildflowers