A tiger shark.A great white shark.A porbeagle.
It's a great white shark!
Also known as the "white pointer". It grows up to 16 feet long.
A tiger shark.A reef shark.A mako.
It's a tiger shark!
Notable for its striped back, hence the name.
Look at the little fella with his camouflage patterns.
A megamouth shark.A whale shark.A basking shark.
It's a basking shark!
The second-largest fish in the world. Often seen in British waters, especially around Cornwall and Scotland. It's a filter-feeder, living on plankton.
A blue shark.A thresher shark.A porbeagle.
It's a thresher shark!
Note the long tail, which it uses to knock its prey unconscious.
You can tell by the teeth. They're all over the place.
Grey nurse sharks are also known as sand tigers, or – revealingly – ragged tooth sharks.
A white-tip reef shark.An oceanic white-tip.A white-tip weasel shark.A white-tip catshark.
It's big and slow and cruises around the ocean a lot.
It's also very endangered, because it's commonly eaten in sharkfin soup.
It's a blue shark!
It's long, slender, and – obviously – blue. Fairly common in British waters.
Via Kiwi Flickr / Wikimedia CommonsVia Jim Capaldi / Wikimedia Commons
It's the one on the right.
The great hammerhead has a straight "hammer" – the scalloped hammerhead, on the left, has a slightly curved one.
A bronze whaler.A megamouth shark.A whale shark.A Greenland shark.
Via OpenCago / Wikimedia CommonsVia Brian Gratwicke / Wikimedia CommonsVia Nick Long / WIkimedia Commons
It's a shovelnose ray, or guitarfish.
Which is a kind of ray, obviously. The others are a sawshark (top left), an angel shark (bottom left) and a catshark.
This Is The Hardest Shark Quiz You'll Take Today
In all honesty that's not actually something to be ashamed of, though. Not everyone needs to know the difference between a ventral fin and a clasper. You're OK. Go have fun.
You'd be able to tell a tiger from a great white, and really, who needs to know more than that?
You can spot a wobbegong from a carpet shark; you know which ones give birth to live young. Well done you.
You know your six-gills from your sleepers. You understand the beauty of sharks. God bless you, shark nerd.
The top-left image in the final question depicts a Japanese sawshark. An earlier version of this piece showed a sawfish, which is a kind of ray, revealing the author of this piece not to be as much of a shark geek as he thought.
Tom Chivers is a science writer for BuzzFeed and is based in London.
Contact Tom Chivers at firstname.lastname@example.org.
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