5 Shocking Facts About The St. Louis Zoo Damage And The Heroic Butterfly Rescue

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The St. Louis Zoo experienced a dramatic and unprecedented event in May 2025, when a powerful storm system, which spawned a massive EF3 tornado across the region, caused significant damage to the beloved institution. While the Zoo was fortunately spared a direct hit from the tornado's main path, the resulting 100-mile-per-hour winds and extensive tree damage throughout Forest Park led to a temporary closure and a major restoration project that continues to this day. The most visible and devastating impact was sustained by a key educational and conservation area: the Mary Ann Lee Butterfly Wing. The immediate aftermath of the storm, which struck on May 16, 2025, saw the Zoo spring into action, prioritizing the safety of its over 12,000 animals and the thousands of guests present. Despite approximately 10,000 visitors being on the grounds at the time, the Zoo miraculously reported no significant injuries to any staff, guests, or animals, a testament to their robust emergency response protocols. The full story of the damage and the subsequent, heroic efforts by dedicated Zoo staff reveals a remarkable commitment to conservation, even in the face of natural disaster.

The May 2025 Tornado: A Timeline of Damage and Immediate Response

The severe weather event that swept through the St. Louis metropolitan area in 2025 was catastrophic, with the powerful EF3 tornado causing an estimated $1.6 billion in damage across the region. While the Saint Louis Zoo campus avoided the worst of the swirling vortex, the surrounding Forest Park area was heavily impacted, resulting in massive debris and wind damage that directly affected the Zoo’s infrastructure. The most critical damage was done to the Mary Ann Lee Butterfly Wing, a key component of the Zoo’s Insectarium. A large tree—or possibly multiple trees—crashed through a section of the Wing's iconic geodesic dome, breaking several of the structure's plexiglass panels. This breach compromised the controlled environment necessary for the delicate invertebrate residents, leading to an immediate and urgent situation. The Zoo was immediately closed to the public and a scheduled race was canceled in the interest of safety and to allow cleanup efforts to begin. Within three days, however, the Zoo was able to reopen for regular hours starting Monday, May 19, demonstrating the incredible dedication of the Zoo's teams. This quick reopening was possible due to the rapid removal of extensive tree damage and debris from the main pathways and animal habitats, though some attractions remained temporarily unavailable.
  • Date of Incident: May 16, 2025
  • Cause: Severe storm system, including an EF3 tornado in the greater St. Louis area.
  • Primary Damage Location: Mary Ann Lee Butterfly Wing (Insectarium).
  • Nature of Damage: Breach of the geodesic dome structure by large fallen trees, shattering plexiglass panels.
  • Safety Report: No significant injuries to staff, guests, or animals reported.
  • Zoo Reopening: The main Zoo campus reopened on May 19, 2025.

The Heroic Butterfly Rescue Effort and Animal Care

The most compelling story to emerge from the disaster was the extraordinary effort to save the residents of the damaged Butterfly Wing. With the dome compromised and the environment exposed to the elements, Zoo staff swiftly initiated a butterfly rescue effort. This required immediate, careful action to capture and safely relocate the dozens of delicate butterflies from the breached habitat. Videos released by the Zoo showed the moments after the storm, highlighting the staff's dedication to the well-being of every single creature in their care. This focus on animal welfare extended throughout the entire facility. Even as cleanup crews worked tirelessly to clear the debris, the Zoo’s conservation and animal care teams found a creative way to turn the disaster into an opportunity for enrichment. They managed to repurpose over 1000 pounds of leaves and other storm debris, which were safely collected and used as natural treats and enrichment materials for various Zoo animals, including the Sichuan takin and the sun bear, making a positive out of a negative situation. The storm also highlighted the extensive network of conservation partners the Zoo works with. While the immediate crisis was managed internally, the Zoo's ongoing commitment to pollinator habitat restoration, in partnership with organizations like the Missouri Department of Conservation and Quail Forever, ensures that the broader mission of saving species continues, even while the Butterfly Wing undergoes its intensive restoration.

Current Status and the Future of the Butterfly Wing Restoration

As of December 2025, the Mary Ann Lee Butterfly Wing remains closed to the public. The damage to the specialized geodesic dome was extensive, requiring a significant and complex restoration project to ensure a safe and sustainable environment for the butterflies and other invertebrates. The official Zoo website currently states that the Butterfly Wing is "closed indefinitely" while they work on repairs. The restoration of the Butterfly Wing is not a simple repair job. It involves structural integrity checks on the dome, replacement of multiple large plexiglass panels, and meticulous work to restore the interior habitat to its pre-storm conditions. While the Zoo has not publicly released a specific cost for the Butterfly Wing restoration project, it is part of the larger financial impact of the May 2025 storm that affected numerous institutions in Forest Park and the greater St. Louis community. The Zoo is dedicated to ensuring the long-term safety and functionality of this beloved exhibit, which serves as a vital educational tool about the importance of pollinators and their role in the ecosystem. Visitors to the Zoo can still enjoy the rest of the Insectarium and the Zoo’s other exhibits, which are operating on their normal fall/winter hours. The continued operation of the main campus, including popular areas like the North Lot and the ongoing development of the Wildcare Park Project, shows the resilience and forward-thinking nature of the institution. The community eagerly awaits a formal announcement regarding the timeline and eventual reopening date of the Mary Ann Lee Butterfly Wing, which will undoubtedly be a day of celebration for the St. Louis Zoo and its many supporters. The incident serves as a powerful reminder of the dedication of the Zoo staff and the critical importance of conservation efforts in a world of increasing environmental volatility.
5 Shocking Facts About the St. Louis Zoo Damage and the Heroic Butterfly Rescue
st louis zoo damage
st louis zoo damage

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