Which was not one of the changes in development and specialization that primitive mammals underwent?

development of body hair

specialization of teeth

increase in stomach capacity

increase in overall body size

1 answer

The change that was not typically associated with the development and specialization of primitive mammals is increase in stomach capacity. While mammals did develop features such as body hair, specialized teeth, and an increase in overall body size over evolutionary time, the specific increase in stomach capacity is not a characteristic change attributed to the evolution of primitive mammals. Instead, adaptations in digestive features would be more closely related to dietary changes rather than a general increase in capacity.