Microlophus – Lava lizards

Can tolerate surprisingly high temperatures due to specialized physiological adaptations

A group of fascinating lizards found primarily in South America and the Galápagos Islands. Known for their adaptability and unique behaviors, these lizards are part of the family Tropiduridae. They thrive in a variety of environments, ranging from arid coastal deserts to the rocky volcanic landscapes of the Galápagos. The genus includes several species, with each having its own characteristics and ecological significance.

One of the most well-known members of this genus is the Galápagos lava lizard, which actually comprises seven distinct species endemic to different islands in the archipelago. These lizards are remarkable for their ability to blend into their rugged surroundings, thanks to their earthy-toned coloration. Depending on the species and habitat, Microlophus lizards can display shades of brown, gray, yellow, or even reddish hues, which help them avoid predators and adapt to their environment.
Members of the genus Microlophus are typically small to medium-sized lizards, with adults ranging from 6 to 12 inches in length, including their tails. Males are often larger and more vividly colored than females, especially during the breeding season. This sexual dimorphism is not just about appearance—it plays a role in their behaviors, particularly in territorial disputes and courtship displays.

Behaviorally, Microlophus lizards are highly interesting. They are diurnal, meaning they are active during the day, and they spend much of their time basking in the sun on rocks or foraging for food. Their diet is quite varied, as they are omnivores. They feed on insects, spiders, and other small invertebrates, as well as plant material, seeds, and even carrion when available. This adaptability in diet makes them resilient in environments where food resources can be scarce or unpredictable.