Why Are There As Many Males As Females?
We explain why that is the way it is.
From
Why Are There As Many Males As Females?
Season 6 Episode 5 | 5m 19s
We explain why that is the way it is.
In almost every animal species on Earth, equal numbers of males and females are conceived. Why is that? Especially in populations like lions or elephant seals, where most males don’t get to mate? That’s survival of the laziest, not survival of the fittest. It turns out that in most cases, an equal balance of the sexes is the evolutionary stable strategy.
From
Problems playing video? | Closed Captioning Feedback
Problems playing video? | Closed Captioning Feedback
Why Are There As Many Males As Females?
Season 6 Episode 5 | 5m 19s
In almost every animal species on Earth, equal numbers of males and females are conceived. Why is that? Especially in populations like lions or elephant seals, where most males don’t get to mate? That’s survival of the laziest, not survival of the fittest. It turns out that in most cases, an equal balance of the sexes is the evolutionary stable strategy.
From
Problems playing video? | Closed Captioning Feedback
How to Watch Be Smart
Be Smart is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android smartphones, Amazon Fire TV, Amazon Fire Tablet, Roku, Samsung Smart TV, and Vizio.
Providing Support for PBS.org
Learn Moreabout PBS online sponsorship
- Science and Nature
A series about fails in history that have resulted in major discoveries and inventions.
Support for PBS provided by: