| The peahen chooses to mate with the male that will most likely produce strong, healthy offspring. |
| Mongolian gerbil fathers' initial offspring avoidance has been a mystery, in that by day three they're dutiful dads. |
| Of the 339 eggs transferred by the research team, 90 managed to implant properly in the uterus, and 15 offspring were born. |
| The genetic make-up of an individual is inherited from parent to offspring and underpins certain characters or traits. |
| What is remarkable, by contrast, is how unsympathetic and inartistic his spouse and offspring appear to be. |
| Territorial sires fathered a greater proportion of the offspring of territorial dams than floater sires. |
