Jian Qin is a professor in aquaculture in the College of Science and Engineering at Flinders University, Australia. This is an article from Curious Kids, a series for children. The Conversation is ...

Say you had a can of tuna, an onion and some cooked white beans. A splash of olive oil, a little red wine vinegar, and couple of basil leaves. Maybe some garlic. Salt, pepper. Sounds good, yes? But ...