Vermont Trail Cams Capture Rare Moth Behavior: Insects Sip Moose Tears

Recent news from Vermont highlights a peculiar wildlife encounter: Moth Tear Drinking. Trail cameras captured an unusual event where moths were observed sipping tears from a moose. This sighting occurred in the Green Mountain Forest, marking a rare documentation of this behavior in a non-tropical region. The photos from this moth tear drinking event were taken in June 2024. The findings were published in November 2025.

Unveiling the Moth Tear Drinking Insects

Environmental scientist Laurence Clarfeld was reviewing footage for a wildlife survey. He works for the University of Vermont. He found images that puzzled him. The trail cameras were deployed by the Vermont Fish and Wildlife Department. The camera recorded 80 photos showing moths near a moose’s head. Clarfeld initially saw what looked like extra eyes. Then, he realized the moths were near the moose’s eyes, appearing to engage in Moth Tear Drinking. This behavior is scientifically known as lachryphagy, meaning “to feed on tears.” This specific instance of Moth Tear Drinking offers a unique glimpse into nature’s complexities.

Why Do Moths Drink Tears? The Insect Nutrient Needs

Scientists believe moths engage in lachryphagy for vital nutrients. Tears contain valuable minerals, with sodium being a key component often scarce in plants. Moths also seek proteins from tears, essential for their survival, metabolism, and reproduction. Tears serve as a supplement, especially when nectar sources are limited. While moths and butterflies commonly drink nectar, they also seek nutrients elsewhere. They might visit mud puddles, urine, feces, or carrion. Tears offer a concentrated source, crucial for their life cycle. The Moth Tear Drinking phenomenon highlights these insect nutrient needs.

A Surprising Vermont Moth Sighting

Lachryphagy is most often observed in tropical areas. Scientists were surprised by this Vermont moth sighting. It is the first documented instance of moths drinking moose tears. Previously, only one non-tropical case was known, involving a moth drinking from a horse’s eye in Arkansas. This recent finding expands our understanding, showing this Moth Tear Drinking behavior can occur in cooler climates and involves a much larger mammal. The research suggests lachryphagy might be more widespread but less documented. The decline of moth populations globally could also play a role in fewer observations. This news adds a new species to the list of tear-drinkers and highlights the diversity of insect feeding habits.

A Wider World of Moth Tear Drinking

This is not an isolated phenomenon. Insects have been observed drinking tears from many animals, including birds, reptiles like turtles, and various mammals. Butterflies are well-known tear drinkers, often visiting turtles in the Amazon for sodium. Bees have also been seen drinking tears. Moths have been documented feeding on the tears of birds and caimans. These interactions are often considered commensal, where one species benefits while the other is largely unaffected. However, there are potential risks; moths might transmit diseases or spread pathogens to the animal’s eyes, potentially leading to health issues such as keratoconjunctivitis in moose, though this remains a hypothesis under scientific investigation.

Technology Captures Nature’s Secrets of Moth Tear Drinking

Trail cameras are invaluable tools, allowing researchers to observe wildlife discreetly without disturbance and providing crucial data on behavior. This Moth Tear Drinking event was captured thanks to modern wildlife trail camera technology. Such innovations help document rare events and contribute significantly to wildlife research and conservation efforts. This recent news from Vermont underscores their importance, allowing us to study the intricate culture of the natural world and reveal behaviors we might otherwise never see. The images offer a compelling look at interspecies interactions and open new avenues for study. Scientists will likely monitor for more such events, as understanding these unique behaviors, including Moth Tear Drinking, is vital for appreciating the complex web of life. This discovery is a significant piece of recent news for moose wildlife behavior enthusiasts.