It's impossible to definitively say whether the first human born was male or female.
The Reality of Human Evolution
The concept of a single "first" human, male or female, is inaccurate. Human evolution is a gradual process occurring within populations, not through the sudden appearance of a single individual. As stated in one source, "There isn't a 'first man' or 'first woman,' and there was never a 'first human' or 'first couple.'" Evolution is a continuous process; there wasn't a specific point where a non-human ancestor gave birth to the first human.
Several sources support this: The provided text explicitly states that there was never a single human born alone from non-human ancestors. Further, the concept of "first" is inherently problematic when considering the gradual nature of evolutionary change.
The Complexity of Gender
The question also touches upon the complexities of gender. While sex is often assigned at birth based on biological factors, gender is a social construct. Therefore, assigning a "male" or "female" designation to the earliest humans is problematic, given the lack of understanding of their social structures and self-identification.
- Evolutionary Perspective: Human evolution didn't involve a single couple giving birth to the entire human race. Instead, early hominids gradually evolved over vast periods, with populations changing over time.
- Gender Identity: Our modern understanding of gender identity is a relatively recent development. Applying this concept to early humans is an anachronism.
Conclusion
The question, as framed, is based on a misunderstanding of human evolution and the complexities of gender. There's no "first" human, male or female, in the way the question implies.