Micro Frog

Fascinating facts about the Micro Frog

• At about 18 mm long, the micro frog is one of the smallest regional species.
• Breeding starts with the arrival of the rainy season between July and September; females attach eggs to vegetation and the tadpoles develop slowly.
• During the dry months the frogs bury themselves in the sand and aestivate, a survival trick that lets them endure months without water in the Mediterranean-type fynbos.
• It is found only on the Cape Flats of Cape Town and a series of sites from Kogelberg to Cape Agulhas.

At a glance

About the Micro Frog

The micro frog (Microbatrachella capensis) is a diminutive marvel of the Cape’s fynbos, measuring barely 18 mm from snout to vent. Its rounded snout and smooth skin give it a sleek profile, while its dorsal palette shifts with locality, from rufous brown mottled with darker speckles to tan or even green tones. A pale flank band runs alongside a narrow, light spine line, and a dark inter-orbital bar frames its eyes, contrasting with a pale belly dotted with white spots. These subtle color cues blend the frog into the sandy, acidic waters of its coastal wetlands, where it spends most of its fleeting life. Living at low altitudes in shallow, vegetated freshwater pools within restioid fynbos, the micro frog’s life is tightly bound to the rhythm of the winter-spring rains. When the rains arrive between July and September, females lay eggs on emergent vegetation, and the tadpoles, which develop unusually slowly, cling to the dark, acidic water. In the dry season the frogs bury themselves in the sand, entering a state of aestivation until the next flood. A surprising trait for such a tiny amphibian is its ability to survive prolonged periods underground, emerging only when the first droplets of rain re-wet their secretive world, a strategy that underscores the species’ remarkable resilience amid a rapidly vanishing habitat.

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