Animals during the 2026 solar eclipse: research reveals changes in natural behaviors

On August 12, 2026, a total solar eclipse promises to be one of the most prominent celestial events, capturing the curiosity of millions. This unique astronomical event, by temporarily obscuring the sky, is capable of inducing temporary changes in the behavior of countless animal species, as the sudden reduction in luminosity modifies environmental signals essential for their daily routines. Understanding these reactions is fundamental for scientists, who seek to deepen knowledge about the intrinsic biological rhythms of living beings and their sensitivity to environmental variations.

Scholars from the Complutense University of Madrid (UCM) point out that a large part of the animal kingdom coordinates vital functions — such as feeding, resting, seeking refuge and movement — according to the daily cycle and the strength of sunlight. When an eclipse causes an abrupt darkening for a few minutes, several living beings perceive the change as the arrival of night and, consequently, adapt their actions.

How does animal behavior manifest itself during a solar eclipse?

Analyzes and observations carried out during previous eclipses have allowed scientists to identify a variety of reactions in animals due to the temporary darkening caused by the phenomenon. Among the most observed responses, the following stand out:

• Birds: several species cease their songs, interrupt their search for food and fly back to their nests, assuming that the darkness of the night has set in. On the other hand, nocturnal birds can anticipate the start of their daily activities.
• Primates: research has indicated that some primates manifest anxiety, a state of restlessness or even confusion, caused by a sudden change in lighting conditions.
• Dogs and cats: these animals, in general, show few changes in their behavior, although certain individuals may show signs of disorientation.
• Reptiles: some varieties of reptiles have exhibited behaviors associated with mating, as reducing light can activate responses linked to their own biological cycles.
• Insects: there are species that change their routine for a period of time. Daytime insects, for example, reduce their movements, while others, with nocturnal activities, can begin their tasks before normal hours.
• Cattle and other mammals: cattle, sheep and other farm animals usually stop grazing and head to the stables or resting areas, interpreting the eclipse as the end of the day.