CATALYST

DENVER MUSEUM OF NATURE & SCIENCE ONLINE MAGAZINE

Fall 2025

Welcome to the Fall 2025 issue of Catalyst!

On the cover: A selection of colorful moths from the Denver Museum of Nature & Science's Entomology Collection. The Museum houses a multitude of insects — including a great diversity of moths from around the world — for research purposes.

Collection: Denver Museum of Nature and Science Entomology Collection

In This Edition

The Mystery of the Missing Bison — Solved After 50 Years

This 650-Pound Museum Bison Vanished. Here’s How We Got It Back.
A Refresh for Insects and Butterflies

Our Iconic, Toddler-Fan-Favorite Lady Bug on the First Floor has Gotten a ‘Facelift’
Understanding Nature’s Most Loveable Giants

The Museum Team is Excited to Host ‘The Secret World of Elephants’
6 Marvelous Moths from the Museum’s Entomology Collection

Stunning Moths You Never Knew You Needed to See
Connecting Scientists to the Colorado State Legislature

Premiering the Colorado Science & Technology Policy Program & Fellows

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Laser Shows

Laser Queen

Laser Taylor Swift

Laser Bad Bunny

Laser Pink Floyd (The Dark Side of the Moon)

Laser Pink Floyd (The Wall)

Temporary Exhibitions

The Secret World of Elephants

Brick Planet: A magical journey made with LEGO® bricks

Magical Winter Nights

A juvenile T. rex dinosaur plays in a natural setting, showcasing it's youthful energy and curiosity.

Discovering Teen Rex

A reconstruction of the “palm world” – forests were dominated by palms for the first ~300,000 years after the asteroid impact. Here, Loxolophus forages for palm seeds while another unnamed/undescribed mammal crawls down a palm frond. A pond turtle, Hoplochelys, looks on in the distance.

After the Asteroid: Earth's Comeback Story