Discussion Board 5: What did the lab tell you?

In your first post, pick an animal species (including perhaps humans) and write about the costs of sex for males versus females. How do these different costs influence the behavior and mating tactics of that species? (Please write 200 – 300 words minimum for this first post). Include links to interesting articles and/or videos.
In your follow-up post, comment on at least one of your colleagues’ posts to expand on their discussion. If relevant, include links to interesting articles and/or videos.