<p>A new leech king of the jungle, <em>Tyrannobdella rex</em>—or "tyrant leech king"—was discovered in the remote <a href="http://travel.nationalgeographic.com/travel/countries/peru-guide/">Peruvian</a> Amazon, National Geographic News reported in April.</p><p>The up-to-three-inch-long (about seven-centimeter-long) leech has large teeth, like its dinosaur namesake <a id="hl9k" title="Tyrannosaurus rex," href="http://animals.nationalgeographic.com/animals/prehistoric/tyrannosaurus-rex.html"><em>Tyrannosaurus rex</em></a>. What's more, the newfound critter's "naughty bits are rather small," noted study co-author <a href="http://research.amnh.org/~siddall/">Mark Siddall</a>, curator of invertebrate zoology at the American Museum of Natural History in New York City.</p><p>For these reasons and more, the bizarre bloodsucker is an editors' pick for one of the oddest new species of 2010.</p><p><em>Get the full story: <a href="http://news.nationalgeographic.com/news/2010/04/100415-new-species-t-rex-leech-orifices/">"'Tyrant King' Leech Discovered, Attacks Orifices."</a></em></p>

T. Rex Leech

A new leech king of the jungle, Tyrannobdella rex—or "tyrant leech king"—was discovered in the remote Peruvian Amazon, National Geographic News reported in April.

The up-to-three-inch-long (about seven-centimeter-long) leech has large teeth, like its dinosaur namesake Tyrannosaurus rex. What's more, the newfound critter's "naughty bits are rather small," noted study co-author Mark Siddall, curator of invertebrate zoology at the American Museum of Natural History in New York City.

For these reasons and more, the bizarre bloodsucker is an editors' pick for one of the oddest new species of 2010.

Get the full story: "'Tyrant King' Leech Discovered, Attacks Orifices."

Photograph courtesy PLoS ONE

Ten Weirdest New Animals of 2010: Editors' Picks

A fish with "hands," a T. Rex leech, and a self-cloning lizard are among National Geographic News's picks for the weirdest new species in 2010.

Read This Next

Can science help personalize your diet?
Hogs are running wild in the U.S.—and spreading disease
Salman Rushdie on the timeless beauty of the Taj Mahal

Go Further

Subscriber Exclusive Content

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

See how NASA’s new Mars rover will explore the red planet