Invasive Species

Thousands of Invasive Cane Toads Overtake Florida Community

A mild winter and rain has led to a spring explosion of the amphibians, which are clogging pool filters, lawns and driveways

The North American fox squirrel is one of eight species deemed very high-risk threats

These 66 Species Are Potential Biodiversity Threats to European Ecosystems

Northern snakehead, green seaweed, striped eel catfish and fox squirrel are amongst the most high-risk species

An Iguana Species Last Documented by Charles Darwin Has Been Reintroduced to a Galápagos Island

The Galápagos land iguana on Santiago Island was decimated by invasive animals like cats, dogs and pigs

A cane toad (Rhinella marina) at Fogg Dam Conservation Reserve, Northern Territory, Australia.

See Ten Lusty Cane Toads Latch Onto a Powerless Python

The toads, which are invasive in Australia, have been known to try and mate with everything from human hands to rotting mangoes

To prevent animal species from going extinct, some ecologists suggest introducing them to urban environments to live alongside humans.

To Save Endangered Species, Should We Bring Them Into Our Cities?

Some ecologists believe our best chance to preserve biodiversity is to introduce non-native species to cities—but others warn of unintended consequences

Why Washington Mountain Goats Are Being Flown From One National Park to Another

Olympic National Park's mountain goats are moving to saltier pastures

Spix's macaw.

In the Last Decade, Four Birds Went Extinct and Four More Are Likely Gone

Habitat loss is the main culprit in killing off the birds, including Spix's macaw, the star of the popular 2011 film <i>Rio</i>

A Burmese python that was captured in Florida's Everglades National Park.

Newly Discovered Hybrid Pythons Are Threatening Florida’s Wildlife

A new study has found that some invasive Burmese pythons carry DNA from another snake, which could make them more adaptable—and more dangerous

How Hungry Baby Urchins Are Saving Hawaii's Reefs

They helped eat through invasive algae that was suffocating corals in Kāne'ohe Bay

Blood-Sucking Invasive Tick Species Spreading Across United States

The Asian long-horned tick has not yet been found to harbor deadly pathogens, but it poses serious risks to animals

The Morne du Tamaris Colony in happier days in 1982.

World's Largest King Penguin Colony Suffers an 85 Percent Crash

The Morne du Tamaris Colony on Île aux Cochons has dropped from 2 million to 200,000 birds over 30 years

Can Scientists Save an Endangered Marsupial by Breeding Out Its Taste for Poisonous Toads?

Some northern quolls do not eat deadly cane toads. New research suggests their aversion is an inherited trait

Coral Reefs Need Fewer Rats and More Bird Poo

A study of rat-infested islands in the Chagos show that a lack of seabirds--and their guano--degrades surrounding coral ecosystems

A Towering, Toxic Plant That Causes Burns and Blindness Has Appeared in Virginia

The giant hogweed, an invasive species, is more typically seen in the Northeast

I can haz more habitats?

The UK's Hedgehogs (and Other Mammals) Are In Danger

The island nation's mammal populations have seen a steep decline in the last two decades, with hedgehog numbers decreasing by two-thirds

DNA Survey of Life in Loch Ness Will Hunt for Its Monster Resident

The goal is to catalog the lake's diversity of life—including any oversized, prehistoric reptiles

Hammerhead Flatworms Have Been Quietly Invading France for Two Decades

And that could spell trouble for the country’s soils

The lionfish is a maroon-and-white striped creature,  but once it’s cleaned, restaurant chefs and home cooks like to grill, bake and fry its firm white flesh.

The Lionfish Have Invaded, But a Ragtag Army of Divers and Chefs Are Fighting Back

Those waging the war against this devastating wave of the venomous species have taken on an 'eat 'em to beat 'em' approach

The South Georgia pipit has been one of the hardest-hit species by the island's rodent population. The government announced Monday that the island is now rodent free.

South Georgia Island Is Officially Free of Its Bird-Killing Rodents

After 250 years plagued with rats and mice, the island's birds will hopefully now have the chance to bounce back

California Is Asking Residents to Report Sightings of Giant, Invasive Rodents

Nutria breed prolifically and they are absolute menaces

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