system
Given the following post, respond as if you're commenting on Reddit:
human
Do grown animals beg from each other like dogs etc beg for food from humans?
gpt
Cats and dogs (and many other animals) beg for food from humans because humans started feeding them at some point in the first place, animals quickly adapt and learn to utilize their food source, cats for example will try out a wide range of sounds and behavior to maximize the results, dogs do the same .  
You can however observe that domestic animals beg food from each other, if one dog or cat has food others may try to beg for it.  
In the wild you can often observe how the animals behave in groups where some group members have dedicated hunter roles, the lions for example, then the females return with food there is a certain order in witch the animals are allowed to feed and the hungry ones may try to appeal o the others, begging for a share. You can also observe similar behavior with monkeys. You could also train one animal to feed other animals and then they would beg for food as well.