Today's Catch

Size comparison between humans, modern Great White Sharks and the ancient Giant Megatooth.

How Big are Great White Sharks?

Imagine an adult person – now triple that size. That’s the size of the great white shark ( Carcharodon carcharias ). The biggest great white sharks can reach up to 20 feet long, but most are smaller. The average female is 15-16 feet long, while...
A female giant squid being prepared for display.

Female Giant Squid

The larger of two giant squids on display in the Smithsonian's Sant Ocean Hall , this female was caught in a fisherman's net off the coast of Spain in 2005. It was probably 2-3 years old and, when alive, 11 meters (36 feet) long with tentacles that...
Elephant seals' eyes are specialized to dim light and, in particular, to light at the wavelength of 485 nm -- which is the same wavelength given off by the bioluminescent lanternfish that are the seals' main prey.

Elephant Seals Laze on the Beach

These southern elephant seals ( Mirounga leonina ) may look like beach bums, but when they are in the water hunting, they are anything but. Satellite tracking by tagging the animals has found that, during the 10 months they spend at sea, elephant...
An underwater photo of a school of jacks and a scuba diver

Bigeye Jacks and Diver Balicasag, Philippines

"I was photographing this beautiful school of jacks when a diver slowly approached from beneath. I shifted my position to capture the moment he entered the ball of fish. Seconds later, he was completely immersed in the school.” -- Nature's Best...
Blackdevil Fish

Blackdevil Fish

Blackdevil fish ( Melanocetus johnsonii ) are quintessential monsters from the deep . The female lurks in the dark, drawing in prey with her glowing lure, while the male attaches to her like a blood-sucking parasite. Females can swallow prey larger...
A NASA satellite image from August 23, 2011 of Hurricane Irene, the Atlantic basin's first hurricane of 2011.

Hurricane Irene

Even when viewed from space, Hurricane Irene looks sizable. When a NASA satellite took this image on August 23, 2011 the storm was 410 miles in diameter, with clouds covering eastern Cuba. Irene is the first Atlantic hurricane of 2011. Read about...
Close-up photograph of a large red cuttlefish.

Australian Giant Cuttlefish

The largest of the cuttlefish species, Australian Giant Cuttlefish ( Sepia apama ) delight scientists each year as they gather in masses to spawn in northern Spencer Gulf, northwest of Adelaide in Australia. To learn about the giant squid, a...
An underwater photo of sharks

Blacktip Sharks by Enric Sala

Enric Sala has spent much of his career looking for the ocean's "time machines" -- areas rich in biodiversity and largely unaffected by humans. In this recorded webcast , Sala, a National Geographic Ocean Fellow, takes the audience to the ocean's...

Reef Sharks Passing Through

Large numbers of grey reef sharks ( Carcharhinus amblyrhynchos ) were observed at Jarvis Island, an uninhabited Pacific island, during the 2010 Pacific RAMP expedition of the NOAA Ship Hi'ialakai . But most reefs don't have so many sharks. Read...
An array of teeth from ragged tooth sharks.

Smithsonian Shark Teeth collection

An array of teeth from the sand tiger shark Carcharias taurus . The Smithsonian has the largest collection of shark teeth in the world, with more than 90,000 fossil shark teeth. More about sharks and great whites can be found in our Great White...

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