We can reconstruct which fish went where and therefore which fish stock -- which are populations of a particular type of fish -- went in direction A, (which in) direction B, and how many fish survived to reach each of these lines.

We make a fish food for every type of fish we breed.

We're not the same hardy stock.

This wise old whiskery fish swims up to three young fish and goes, 'Morning, boys, how's the water?' and swims away; and the three young fish watch him swim away and look at each other and go, 'What the fuck is water?' and swim away.

We just have to get this right, because there are not enough fish left.

It's very endangered. Populations are rising so fast, and sites that were in wild, uninhabited areas have development growing around them. So you have graffiti, the single biggest threat.