symbiosis, n.All

A rare butterfly in Australia has a symbiotic relationship with ants who escort the caterpillar to a plant to feed, then bring it back to their nest to watch over while it sleeps. The ants get a sweet nectar in return.

In Laguna, Brazil, ever since 1846, a pod of Bottlenose Dolphins have been cooperatively fishing with fishermen, herding mullet fish towards the shore and signaling the fishermen to cast their nets.

Wasps are essential in the production of wine. The yeast on the surfaces of mature grapes can't survive winter but can survive and breed in the stomachs of hibernating wasps

The Greater Honeyguide bird guides people to beehives and after the honey is taken out the bird eats what's left of the hive.

Ravens and wolves have formed a mutually beneficial relationship where ravens call wolves to the site of dead animals so that the wolves then open up the carcass and leave scraps for the ravens

Cats are one of the very few animal species that domesticated themselves. They decided to coexist with humans because it was beneficial for them.

Some plants can 'hear' bees coming and respond by making sweeter nectar.

The poisonous Chemchem Tree grows intertwined with the Chaka Tree whose sap is an anecdote