# Hard Mating Aggregation as Evidence of Polyandry in the Red‐Tailed Boa, Boa constrictor (Squamata: Boidae), in a Brazilian Caatinga Population

## TL;DR

A female red-tailed boa was observed mating with five males in Brazil, supporting polyandry and the role of size in mating behavior.

## Contribution

The study provides new evidence of polyandry in red-tailed boas through a rare five-male mating aggregation.

## Key findings

- A female Boa constrictor was observed with five males in a reproductive aggregation.
- The observation supports polyandry in this species, with larger females mating with multiple males.
- Sexual size dimorphism influences the formation of such mating aggregations.

## Abstract

This study reports a reproductive aggregation of a female
Boa constrictor
with five males in the Brazilian Caatinga. The observation reinforces the evidence of a polyandrous system, favoring larger females that copulate with different males. Our record highlights the influence of sexual size dimorphism in the formation of aggregations.

This study reports a reproductive aggregation of a female
Boa constrictor
with five males in the Brazilian Caatinga. The observation reinforces the evidence of a polyandrous system, favoring larger females that copulate with different males. Our record highlights the influence of sexual size dimorphism in the formation of aggregations.