10 Delicious Recipes Made With Invasive Species

Wanna help the environment? Grab some plates. In this globalized era, invasive organisms have become a threat that demands the attention of every country on earth. Luckily, many transplanted species just happen to make for good eating—so, in honor of National Invasive Species Awareness Week, we’ve gathered 11 awesome recipes that will help you bite back and dazzle your dinner guests in one eco-friendly stroke.

1. Lionfish Nachos

These predators definitely fall into the “pretty-but-deadly” category. Venomous, fast-breeding lionfish are currently wreaking havoc on the Caribbean and Gulf of Mexico. But fear not: concerned citizens can start reading The Lionfish Cookbook: The Caribbean’s New Delicacy, which features 45 dishes—including an excellent nacho appetizer.

2. Kudzu Quiche


Reviled as “the vine that ate the South,” kudzu has been smothering Uncle Sam’s shrubs and devouring Dixie since it was championed as an anti-erosion wonder plant during the early 20th century. Southerners can score succulent vengeance via yummy kudzu quiche. Unfortunately, New Yorkers may soon join them, since the plant is steadily creeping northwards.

3. Smothered River Rat (Cajun Style)


Louisiana’s bayous—and menus—have long been infiltrated by South American river rats (or “nutrias”). Evidently, they taste like rabbit. Pass the gumbo!

4. Steamed Snakehead

“You can invade my stomach anytime!” said one Annapolis restaurant patron after tasting his first snakehead entrée. In 2002, Maryland’s government was so mortified by the prospect of these scary-looking fish getting a local foothold that it resorted to poisoning an infested pond! Such a pity: A cook-off would have been much cheaper. You can find a number of recipes for how to cook the fish—including a soup with sweet corn—here.

5. Apple and Knotweed Pie

Looking for a guilt-free pie? Of course you are. By adding the Japanese knotweed as an extra ingredient in your apple pie, you can jazz up the flavor and take comfort in knowing that you’re using America’s most patriotic dessert to help take down one of her toughest invasive species.

6. Cane Toad Stir Fry


Today, these notorious amphibians are eating their way through Florida, Hawaii, Australia, New Guinea, Fiji, the Philippines, and the Caribbean. But that could all change when word gets out that their scrumptious legs are world-class stir fry ingredients.

7. Silverberry Spicebush Bread

Exotic yet familiar, the crimson berries of this plant, native to China, Korea, and Japan, can be mashed up and incorporated into a sweet, delectable bread.

8. Wild Boar Bacon

Native to Eurasia, wild boars now terrorize 39 states and cause $400 million worth of annual damages in Texas alone, arguably making them America’s most destructive foreign organism. On a positive note, at least you can generate gamey bacon from these dangerous swine. 

9. Garlic Mustard Pesto

With a name like “garlic mustard,” it has to be good! An unwelcome sight in the Midwest and elsewhere, these European plants can sure punch up pasta nights.

10. Green Iguana Ragout


Green iguanas might be popular in the pet trade, but as voracious and indiscriminate herbivores, they’re out-competing several of Florida’s vegetarian insects. So what do the five-foot lizards taste like? Chicken, of course. 

Why Tiny 'Hedgehog Highways' Are Popping Up Around London

Hedgehogs as pets have gained popularity in recent years, but in many parts of the world, they're still wild animals. That includes London, where close to a million of the creatures roam streets, parks, and gardens, seeking out wood and vegetation to take refuge in. Now, Atlas Obscura reports that animal activists are transforming the city into a more hospitable environment for hedgehogs.

Barnes Hedgehogs, a group founded by Michel Birkenwald in the London neighborhood of Barnes four years ago, is responsible for drilling tiny "hedgehog highways" through walls around London. The passages are just wide enough for the animals to climb through, making it easier for them to travel from one green space to the next.

London's wild hedgehog population has seen a sharp decline in recent decades. Though it's hard to pin down accurate numbers for the elusive animals, surveys have shown that the British population has dwindled by tens of millions since the 1950s. This is due to factors like human development and habitat destruction by farmers who aren't fond of the unattractive shrubs, hedges, and dead wood that hedgehogs use as their homes.

When such environments are left to grow, they can still be hard for hedgehogs to access. Carving hedgehog highways through the stone partitions and wooden fences bordering parks and gardens is one way Barnes Hedgehogs is making life in the big city a little easier for its most prickly residents.

[h/t Atlas Obscura]

Penn Vet Working Dog Center
Stones, Bones, and Wrecks
New Program Trains Dogs to Sniff Out Art Smugglers
Penn Vet Working Dog Center
Penn Vet Working Dog Center

Soon, the dogs you see sniffing out contraband at airports may not be searching for drugs or smuggled Spanish ham. They might be looking for stolen treasures.

K-9 Artifact Finders, a new collaboration between New Hampshire-based cultural heritage law firm Red Arch and the University of Pennsylvania, is training dogs to root out stolen antiquities looted from archaeological sites and museums. The dogs would be stopping them at borders before the items can be sold elsewhere on the black market.

The illegal antiquities trade nets more than $3 billion per year around the world, and trafficking hits countries dealing with ongoing conflict, like Syria and Iraq today, particularly hard. By one estimate, around half a million artifacts were stolen from museums and archaeological sites throughout Iraq between 2003 and 2005 alone. (Famously, the craft-supply chain Hobby Lobby was fined $3 million in 2017 for buying thousands of ancient artifacts looted from Iraq.) In Syria, the Islamic State has been known to loot and sell ancient artifacts including statues, jewelry, and art to fund its operations.

But the problem spans across the world. Between 2007 and 2016, U.S. Customs and Border Control discovered more than 7800 cultural artifacts in the U.S. looted from 30 different countries.

A yellow Lab sniffs a metal cage designed to train dogs on scent detection.
Penn Vet Working Dog Center

K-9 Artifact Finders is the brainchild of Rick St. Hilaire, the executive director of Red Arch. His non-profit firm researches cultural heritage property law and preservation policy, including studying archaeological site looting and antiquities trafficking. Back in 2015, St. Hilaire was reading an article about a working dog trained to sniff out electronics that was able to find USB drives, SD cards, and other data storage devices. He wondered, if dogs could be trained to identify the scents of inorganic materials that make up electronics, could they be trained to sniff out ancient pottery?

To find out, St. Hilaire tells Mental Floss, he contacted the Penn Vet Working Dog Center, a research and training center for detection dogs. In December 2017, Red Arch, the Working Dog Center, and the Penn Museum (which is providing the artifacts to train the dogs) launched K-9 Artifact Finders, and in late January 2018, the five dogs selected for the project began their training, starting with learning the distinct smell of ancient pottery.

“Our theory is, it is a porous material that’s going to have a lot more odor than, say, a metal,” says Cindy Otto, the executive director of the Penn Vet Working Dog Center and the project’s principal investigator.

As you might imagine, museum curators may not be keen on exposing fragile ancient materials to four Labrador retrievers and a German shepherd, and the Working Dog Center didn’t want to take any risks with the Penn Museum’s priceless artifacts. So instead of letting the dogs have free rein to sniff the materials themselves, the project is using cotton balls. The researchers seal the artifacts (broken shards of Syrian pottery) in airtight bags with a cotton ball for 72 hours, then ask the dogs to find the cotton balls in the lab. They’re being trained to disregard the smell of the cotton ball itself, the smell of the bag it was stored in, and ideally, the smell of modern-day pottery, eventually being able to zero in on the smell that distinguishes ancient pottery specifically.

A dog looks out over the metal "pinhweel" training mechanism.
Penn Vet Working Dog Center

“The dogs are responding well,” Otto tells Mental Floss, explaining that the training program is at the stage of "exposing them to the odor and having them recognize it.”

The dogs involved in the project were chosen for their calm-but-curious demeanors and sensitive noses (one also works as a drug-detection dog when she’s not training on pottery). They had to be motivated enough to want to hunt down the cotton balls, but not aggressive or easily distracted.

Right now, the dogs train three days a week, and will continue to work on their pottery-detection skills for the first stage of the project, which the researchers expect will last for the next nine months. Depending on how the first phase of the training goes, the researchers hope to be able to then take the dogs out into the field to see if they can find the odor of ancient pottery in real-life situations, like in suitcases, rather than in a laboratory setting. Eventually, they also hope to train the dogs on other types of objects, and perhaps even pinpoint the chemical signatures that make artifacts smell distinct.

Pottery-sniffing dogs won’t be showing up at airport customs or on shipping docks soon, but one day, they could be as common as drug-sniffing canines. If dogs can detect low blood sugar or find a tiny USB drive hidden in a house, surely they can figure out if you’re smuggling a sculpture made thousands of years ago in your suitcase.


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