Red mullet, sardines, anchovies and squid are currently heading north at up to 50km per year

Standfirst ...

Kilometres per year

km/year

10

20

30

40

50

Red mullet, sardines, anchovies and squid 50km

UK climate velocity on seas 10km

Split-hoofed mammals 9km

Carnivorous mammals 6km

UK climate velocity on land 5km

Butterflies 4km

Freshwater molluscs 3km

Rodents 1km