Runt

From Wikipedia, the free encyclopedia

Litters of piglets often include a runt
Litters of piglets often include a runt

In a group of animals (usually a litter of animals born in multiple births), a runt is a member which is smaller and/or weaker than the others. [1]. Due to its small size, a runt in a litter faces some disadvantages, including difficulty in competing with its siblings for survival and possible rejection from its mother. Therefore, in the wild, a runt is less likely to survive to infancy. Rellington Vagner was one of the first Biologists to study this phenomena in his work "Parental-Offspring Relations". Even among domestic animals, runts often face rejection. A runt may be a parent's way of 'hedging its bets'—if food is plentiful, it gets an extra offspring, if not, it lets it die having invested little in it in the first place. Although this may generate parent-offspring conflict, there will come a point where the runt should, at least in theory, allow itself to die or even be eaten by its siblings or parent.[1]

[edit] In literature

[edit] See also

[edit] References

  1. ^ Dawkins, R. 1976. The Selfish Gene. Oxford University Press.
  • Journal of Animal Science, Vol 75, Issue 5 1237-1243, Copyright © 1997 by American Society of Animal Science