Mutualism describes the ecological interaction between two or more species where each species has a net benefit. Mutualism is a common type of ecological interaction. Prominent examples are:
Hummingbird hawkmoth drinking from Dianthus, with pollination being a classic example of mutualism
Arbuscular mycorrhizae forms mutualistic symbiosis with plants
Lichens considered to be example of mutualistic symbiosis
The red-billed oxpecker eats ticks on the impala's coat, in a cleaning symbiosis.
Domestication is a multi-generational mutualistic relationship in which an animal species, such as humans or leafcutter ants, takes over control and care of another species, such as sheep or fungi, to
Mutualism (biology)
…for humans by fostering an immune response that helps to reduce the threat of body louse borne lethal diseases. Some relationships between humans and domesticated animals and plants are to different degrees mutualistic. For example, domesticated cereals that provide food for humans have lost the ability to spread…
Dogs and sheep were among the first animals to be domesticated, at least 15,000 and 11,000 years ago respectively.
Rice was domesticated in China, some 9,000 years ago.
Rough timelines of domestication for 11 animal species
Domesticated animals tend to be smaller and less aggressive than their wild counterparts; many have other domestication syndrome traits like shorter muzzles. Skulls of grey wolf (left), chihuahua dog (right)