What's the term?

[JPM San Diego]

So my daughter messaged me and asked,
"What do you call the act of ocean creatures exchanging favors?"

 

[EricR]

Mating ... just kidding

 

[Gtinnel]

Reciprocity? although not specific to ocean creatures. If this was meant as a joke then ignore my answer

 

[Gtinnel]

I guess it could also possibly be mutualism, but that is usually more about a mutually beneficial symbiotic relationship, and again not specific to ocean life.
It seems like this is going to be a joke.

 

[JPM San Diego]

You're on to me.
I thought my daughter was serious so I responded, "mutual symbiosis."

She replied ... "squid pro quo"