Zebra Stripes
The zebra is a beautiful and unique animal known for its bright black and white stripes. These stripes have puzzled and fascinated people for centuries, inspiring a range of theories about their purpose. From camouflage and vision protection to temperature regulation and species recognition, researchers have long sought to understand the evolutionary utility of zebra stripes.
Until recently, scientists generally agreed that the stripes acted as camouflage, making it difficult for predators to detect the animals in their grassy habitats. In 2017, however, a study was published in the journal Nature Communications, which found that the stripes did not actually help a zebra blend in with its environment. Instead, the researchers concluded that the stripes of an individual zebra were uniquely identifiable, allowing other individuals in the herd to recognize them.
In 2018, a new study published in the journal eLife revealed that the stripes may have another purpose: cooling the animals in hot climates. The study found that the black stripes absorbed more solar radiation than the white stripes, whereas the white stripes reflected more light. This effect helped the zebra regulate its body temperature in the heat of the day.
More recently, in 2019, a study conducted at the University of Toronto’s MSI - Molecular Science Institute suggested another function of zebra stripes: vision protection. The researchers found that the stripes provided physical shielding for the eyes, preventing the sun’s rays from reaching them. In addition, the stripes shielded some of the ultraviolet light, further protecting the animal’s vision from damage.
The mysterious stripes of the zebra continue to capture our imagination and compel researchers to uncover their evolutionary purpose. While the exact role of the stripes remains unclear, it appears that they serve multiple purposes, from species recognition to temperature regulation to vision protection. As our understanding of the intricate stripe patterns continues to grow, so too does our appreciation for the beauty and adaptability of the zebra.