Artículo en Español y en Inglés
(Spanish & English article)
New research shows rank matters more than paternity for males’ relationships with infants
|A Silverback's male with two babies on his back|
Could you please take a look to the image above and tell me: Is he the daddy? I would say no just based on his face expression (pers. comment).
New research says it doesn’t really matter – it’s the male gorilla’s rank in the group that makes the difference when it comes to bonding with the kids.
A new study published in Animal Behaviour shows that higher-ranking gorillas form stronger relationships with infants, regardless of whether they are related. The authors, from the University of California, Los Angeles, the Dian Fossey Gorilla Fund International in Atlanta and the Max Planck Institute for Evolutionary Anthropology in Leipzig say their findings support the theory that for most of their evolution, gorillas lived in groups with one male and several females.
Mountain gorillas – Gorilla beringei beringei – live in groups in the forests of central Africa. One group, or troop, of gorillas can have more than one male as well as several females. However, scientists believe that this has not always been the case; earlier in their evolution, mountain gorillas may have lived in troops with only one male and several females.
For the new study, researchers tracked the way male mountain gorillas interact with infants to see if their behavior is similar to other primates that live in troops with more than one male. The results show that being the biological father does not influence the way male gorillas interact with infants, suggesting that their social structure is relatively new.
“For a long time there was an assumption that monkeys and apes didn’t know who their fathers were in groups with multiple males,” said lead author Dr. Stacy Rosenbaum, a biological anthropologist at Lincoln Park Zoo in Chicago. “Thanks to advances in molecular genetics, we now know that’s not always true, though in this particular species, it turns out that assumption was correct.”
|Macho espalda plateada con dos crías sobre él|
Podría usted echar un vistazo a la imagen de arriba y decirme: ¿cree que el macho espalda plateada es el papá de esas crías? (Yo diría que no basándome solo en la expresión de su rostro - Comentario personal).
gorila macho en el grupo lo que determina la diferencia en las relaciones de unión con las crías.