Atlantic horse mackerel

The scad is a silvery fish that zips through the eastern Atlantic and parts of the Indian Ocean. It belongs to the same family as jacks and trevallies, known for their speed. People catch them in large numbers, but their populations are now considered at risk.

• Swims in schools along Europe's and Africa's Atlantic coasts.
• Fishermen target them heavily for commercial harvest.
• Their closest relatives include pompanos and other mackerels.