Which sex of hamsters has a more rounded posterior appearance?

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Multiple Choice

Which sex of hamsters has a more rounded posterior appearance?

Explanation:
In hamsters, external reproductive anatomy creates distinct silhouettes between the sexes. Males have visible scrotal sacs at the base of the tail, which round out the hind end and give a fuller, more rounded posterior when viewed from behind. Females lack these scrotal bulges, so their hindquarters appear flatter and less rounded. This difference in the posterior contour is a practical, quick cue to sex, especially in adults. So the more rounded posterior is characteristic of males.

In hamsters, external reproductive anatomy creates distinct silhouettes between the sexes. Males have visible scrotal sacs at the base of the tail, which round out the hind end and give a fuller, more rounded posterior when viewed from behind. Females lack these scrotal bulges, so their hindquarters appear flatter and less rounded. This difference in the posterior contour is a practical, quick cue to sex, especially in adults. So the more rounded posterior is characteristic of males.

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