PEARSON’S TUCO-TUCO – Ctenomys pearsoni


Pearson’s tuco-tuco facts: The head and body length for Pearson’s tuco-tuco is 7.5 inches (19 centimeters) and they weigh about 7 ounces (200 grams). They have brown-red fur with a white band of fur under the neck and white patches on the sides of the neck.

Geographic range: Pearson’s tuco-tucos live in Peru, Chile, southwest Uruguay, and Entre Rios province in Argentina.

Pearson’s tuco-tuco habitat: These tuco-tucos prefer coastal sand dunes and grassland.

What does pearson’s tuco-tuco eat: Pearson’s tuco-tuco are herbivores. Their diet consists primarily of grasses, herbs, shrubs, and roots.

Behavior and reproduction: The Pearson’s tuco-tuco is solitary and individuals come together only to mate. The animal is territorial, meaning it is protective of an area it considers home and claims exclusively for itself. It will aggressively defend its territory and burrow from other tuco-tucos. It leaves its burrow only to find food and to mate. It has several vocalizations, including a sound to warn intruders away from its territory. It also has an excellent sense of hearing and can detect a human moving from about 165 feet (50 meters) away.

The mating season for Pearson’s tuco-tuco in Peru is during the dry season and the babies are born in the wet season, when there is an abundance of plants. Female Pearson’s tuco-tucos have one litter of babies per year. The number of babies ranges from two to four. They are believed to be polygamous, meaning they take more than one mate during the breeding season.

Pearson’s tuco-tuco and people: They are rarely hunted and because they are so solitary, they have no known significance to humans.

Conservation status: Pearson’s tuco-tuco is not listed as threatened by the IUCN.