Precocial Weaning Influences Anxiety, Social and Maternal Care but Not Cognition in African Striped Mice, Rhabdomys dilectus chakae

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Main Authors: Maria K Oosthuizen, Neville Pillay
Format: Artículo Open Access
Published: Wiley 2026
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author Maria K Oosthuizen
Neville Pillay
author_facet Maria K Oosthuizen
Neville Pillay
Maria K Oosthuizen
Neville Pillay
collection Wiley Open Access
contents Precocial Weaning Influences Anxiety, Social and Maternal Care but Not Cognition in African Striped Mice, Rhabdomys dilectus chakae Maria K Oosthuizen Neville Pillay Developmental Psychobiology ABSTRACT Weaning is a stressful stage in the lives of young mammals. Early weaning, in particular, can lead to long‐lasting physiological and psychological changes. We investigated the effects of precocial weaning on anxiety, social behavior, cognition, and maternal behavior in adult African four‐striped mice ( Rhabdomys dilectus chakae ). Mice weaned at 12 days exhibited higher anxiety levels and reduced exploratory behavior in a novel environment compared with those weaned at 16 and 20 days. Early‐weaned mice also showed decreased allogrooming and body contact, and increased aggression during social interactions. Females weaned early, groomed, and huddled their pups less, although they spent more time in proximity without touching their pups. Spatial learning and memory were not affected by the age at weaning. Early weaning induces stress‐related changes in anxiety, exploration, and social behaviors, all of which are of ecological relevance. Although precocious weaning did not affect cognition, R. d. chakae are likely to be anxious and poor mothers, which could also impact the fitness of their offspring. These effects manifested in behaviors of ecological significance, suggesting that early weaning may influence the fitness of the four‐striped mouse. 10.1002/dev.70124 http://creativecommons.org/licenses/by-nc-nd/4.0/
doi_str_mv 10.1002/dev.70124
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institution Wiley Open Access
license_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
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publisher Wiley
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spellingShingle Precocial Weaning Influences Anxiety, Social and Maternal Care but Not Cognition in African Striped Mice, Rhabdomys dilectus chakae
Maria K Oosthuizen
Neville Pillay
Developmental Psychobiology
Precocial Weaning Influences Anxiety, Social and Maternal Care but Not Cognition in African Striped Mice, Rhabdomys dilectus chakae Maria K Oosthuizen Neville Pillay Developmental Psychobiology ABSTRACT Weaning is a stressful stage in the lives of young mammals. Early weaning, in particular, can lead to long‐lasting physiological and psychological changes. We investigated the effects of precocial weaning on anxiety, social behavior, cognition, and maternal behavior in adult African four‐striped mice ( Rhabdomys dilectus chakae ). Mice weaned at 12 days exhibited higher anxiety levels and reduced exploratory behavior in a novel environment compared with those weaned at 16 and 20 days. Early‐weaned mice also showed decreased allogrooming and body contact, and increased aggression during social interactions. Females weaned early, groomed, and huddled their pups less, although they spent more time in proximity without touching their pups. Spatial learning and memory were not affected by the age at weaning. Early weaning induces stress‐related changes in anxiety, exploration, and social behaviors, all of which are of ecological relevance. Although precocious weaning did not affect cognition, R. d. chakae are likely to be anxious and poor mothers, which could also impact the fitness of their offspring. These effects manifested in behaviors of ecological significance, suggesting that early weaning may influence the fitness of the four‐striped mouse. 10.1002/dev.70124 http://creativecommons.org/licenses/by-nc-nd/4.0/
title Precocial Weaning Influences Anxiety, Social and Maternal Care but Not Cognition in African Striped Mice, Rhabdomys dilectus chakae
topic Developmental Psychobiology
url https://onlinelibrary.wiley.com/doi/10.1002/dev.70124