Invasive Species

Park rangers found Toadzilla while conducting track work.

At Almost Six Pounds, ‘Toadzilla’ May Be the Largest Toad Ever Found

Captured in a national park in Australia, the cane toad was later euthanized due to the invasive animal’s threat to the environment

Our ten-most read stories of the year featured the all-woman army of the African kingdom of Dahomey, mischievous felines, J.R.R. Tolkien and more.

Our Top Ten Stories of 2022

From a teen inventor to invasive fish to lost cities of the Amazon, these were our most-read articles of the year

Professor Bruce Jayne demonstrates how wide a Burmese python can open its mouth to swallow prey.

Here’s How Burmese Pythons Eat Such Big Prey

Stretchy connective tissue between the snakes' cranium and lower jaw allows them to open their mouth four times wider than their skull

Humans have come up with a number of wacky methods to keep animals deemed "vermin" in check.

Seven of the Wildest and Weirdest Attempts to Curb Animal Pests

Why use fences or traps, when you can use deadly viruses or lustful snakes?

Andy Hackett and "The Carrot"

Angler Reels in 67-Pound Goldfish in France

British fisherman Andy Hackett caught and released the colossal creature, nicknamed "The Carrot," while casting at a private fishery

Participants of the 2022 Florida Python Challenge captured a total of 231 invasive pythons during the ten-day competition. 

Florida Teen Wins $10,000 for Hunting Invasive Pythons

The annual Florida Python Challenge combats the destructive snakes, which have taken over the Everglades

Australia is home to roughly 200 million rabbits, which are not native to the country and damage crops and ecosystems. 

How Two Dozen Rabbits Started an Ecological Invasion in Australia

The country’s “most serious pests” can be traced to one shipment from England in 1859, study shows

A male bison atop an arid hillside on Santa Catalina Island in California.

The Uneasy Future of Catalina Island's Wild Bison

One of Hollywood’s weirdest legacies, the herd of beasts lives under the watchful eye of local conservationists

A homeowner spotted the moth on the wall of his garage in early July.

First U.S. Sighting of Massive Atlas Moth Confirmed

The insect may have escaped from an illegal cocoon-selling operation

An adult spotted lanternfly

People are ‘Hunting’ Invasive Spotted Lanternflies—And You Should, Too

Officials urge the public to squish the bugs, which are damaging crops and trees in the eastern U.S.

A giant African land snail

Giant Snails Take Over Florida's Gulf Coast Again

The state has found more than 1,400 of the massive snails since June

In Blaine, Washington, after the 2020 appearance of the two-inch long invasive species Vespa mandarinia (above: Washington State entomologist Chris Looney holds a native bald-faced hornet to compare it with the huge size of the invader), scientists worked to eradicate it.

Giant 'Murder' Hornet Has Landed at the Natural History Museum

After scientists studied the invasive insect, visitors are getting a first look at the fierce creature that could wreak havoc on U.S. agriculture

A green crab, Carcinus maenas

Innovation for Good

New Hampshire Distillery Makes Whiskey Out of Invasive Crabs

Each bottle uses about one pound of green crabs

The female python weighed 215 pounds and measured 18 feet long.

Florida Biologists Capture Record-Breaking 215-Pound Python

Invasive Burmese pythons are wreaking havoc on native wildlife and ecosystems in the Everglades

One reader wonders: Since purple dye was scarce, why didn’t people just combine blue and red?

Why Was Purple the Color of Royalty? And More Questions From Our Readers

You've got questions. We've got experts.

Fresh copi on ice

Can Rebranding Invasive Carp Make It More Appealing to Eat?

Illinois is giving the problematic fish a new name—copi—in hopes of tempting more diners to chow down

Goldfish, as voracious eaters, will devour snails, small insects, fish eggs, and young fish, out-competing native fish. They can also grow over a foot long outside in the wild. (Pictured: A 14-inch goldfish removed by the U.S. Fish and Wildlife Service from the Niagara River that flows north from Lake Erie to Lake Ontario)

Though Cute as Pets, Goldfish Are Highly Invasive Once in the Wild

The animal’s insatiable appetites, bold behaviors and adaptability make them harmful to new environments

Salma brachyscopalis Hampson

U.S. Customs Agents Find Rare Moth Last Spotted in 1912

Larvae and pupae found in seed pods at the Detroit Metropolitan Airport last fall hatched into <em>Salma brachyscopalis Hampson</em> moths

Wild boars are causing major issues in Italy.

Wild Boars Are Ransacking Rome

The Italian government plans to cull the population after at least one animal tested positive for a contagious swine fever

Acid-spewing tawny crazy ants, formerly called raspberry crazy ants, have been spreading through the gulf coast in recent years.

A Killer Fungus Is Annihilating Invasive 'Crazy Ants' in the United States

Entomologists are hopeful the pathogen could slow the insects' spread through the country

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