When a breeding wolf dies, its sex and the size of its pack can determine whether that pack continues, according to research. In 2012, biologists at Denali National Park and Preserve noted a drop in wolf sightings following the death of a breeding female from a pack that lived along the Denali Park Road.![](http://feeds.feedburner.com/~r/sciencedaily/plants_animals/dogs/~4/oW0QaHMq24o)
Data:
08 de Julho de 2014
Ler mais
Ler mais:
Fonte:
![Retrato de admin Retrato de admin](https://www.caotinhodolabrador.com/sites/default/files/styles/user_picture_content/public/images/user-pictures/picture-1-1386342300.jpg?itok=3HYgDUM9)