Essential Information on the Galapagos Racer Snake
The classification of Galápagos Racer snakes is continually evolving. There is no definitive classification at the moment, but at least four distinct species of these endemic snakes are known to have existed, with two now believed to be extinct. These snakes belong to the Pseudalsophis family, native to the Galápagos Islands.
All Galápagos snakes are racers and are mildly venomous constrictors. They are typically shy and will quickly flee if approached abruptly. However, with the guidance of a skilled naturalist, you might have a remarkable close encounter with a racer during your shore excursions.
These snakes catch their prey by biting and injecting venom, which begins the digestive process immediately. This pre-digestion helps prevent choking when the snake swallows its prey whole. Their diet varies based on available prey and can include Darwin's Finches, Galápagos Mockingbird hatchlings, rats, mice, locusts, and newborn Galápagos marine iguanas.
In the most populated areas of the Galápagos, Racer snake populations have declined. For instance, on Floreana Island, the introduction of invasive species like feral rats, cats, and dogs has led to a significant drop in their numbers.
Conversely, on Española and Fernandina Islands, the population of Racer snakes has increased due to their protected and isolated environments.
The only natural predator of these snakes is the Galápagos Hawk. During a Galápagos cruise, you'll have several opportunities to see these fascinating reptiles up close on various shore excursions.
