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Carrie Arnold

Carrie is a freelance science writer living in Virginia. When she's not writing about cool critters, she's spending time outside, drinking coffee, or knitting. You can visit her website at http://www.carriearnold.com

Monarch Butterflies Shrink, Get Paler After Skipping a Meal

Brilliantly colored monarch butterflies literally are what they eat—and missing even one meal can be harmful, a new study says.

New Species: Pink-and-Yellow Frog With Spikes

High in the mountains of Vietnam, scientists have found a “striking” new species of pink-and-yellow frog covered with sharp spikes, a new study says.

“Strange” New Frog Found in Swimming Pool

A boy in eastern Colombia recently found more than just fun in his swimming pool: A new species of frog.

Invasive Pythons Can Find Home 20 Miles Away, Study Says

For Burmese pythons, there’s no place like home—abd the snakes can navigate from over 20 miles away to get there, a new study says.

Q&A: The Real Story of “The Incredible Dr. Pol”

Get behind the scenes of the show and find out why Dr. Pol says he will “die with his hand up the back of a cow.”

Lemurs in Love Take on the Same Smell

It’s a finding fit for Valentine’s Day: Coquerel’s sifakas that have mated and produced offspring alter their natural scents to smell alike, a new study says.

Bird’s “Evil Eye” Scares Off Competitors

A look from a Eurasian bird called the jackdaw can keep competitors away, a new study says.

How Do Spiders Walk Upside Down? Mystery Solved

Tiny, flexible hairs at the end of spiders’ legs are the secret to their sticky success, a new study says.

Mystery of Sloths’ Tri-Weekly Poop Trips Solved?

Pooping can be a deadly activity for three-toed sloths. But there are benefits, aside from the obvious. New research shows that going to the bathroom actually results in more food for these tree-dwelling animals.

“Slingshot Spider” Flings Sticky Web at Prey, Spider-Man Style

In a Spider-Man-like move, a possibly new species of spider uses its web as a slingshot to ensnare prey.

Your Best Names for the Mystery Picket-Fence Spider

Carousel spider, American dream spider, Druid spider—see the creative names suggested for the new Amazonian arachnid that makes “picket fences.”

Mystery Picket Fence in Amazon Explained

The animal that built strange web-like structures in the Amazon has finally been identified, scientists say.

Dung Beetles Use the Sun to Navigate

Call it a new twist on catching some rays: One species of dung beetle uses sunlight to steer its balls of poop, a new study says.

Caterpillar’s Bad Breath Scares Off Predators

The foul-breathed tobacco hornworm may not get many dates, but its foul odor keeps predators at bay, a new study says.

Swimming-Animal Videos: Why Does Wildlife End Up in Pools?

Why do bears, moose, deer and other wildlife venture into our backyards and take a dip?