I personally recently learned that our human ancestors would follow flocks of vultures and then they would help them to identify where carcasses have been dropped by large carnivores, and these humans will scavenge and eat part of that meat.
Hace poco aprendí que nuestros ancestros seguían bandadas de buitres y ellos les ayudaban a ver dónde los carnívoros arrojaban los cadáveres, y estos humanos buscaban y comían parte de esa carne.