Unusual and Fun Facts About the World of Invasive Species

Unusual and Fun Facts About the World of Invasive Species

Invasive species are plants, animals, or pathogens that are non-native to the ecosystem under consideration and cause harm to the economy, environment, or human health. There’s no doubt these species can be a nuisance. However, there are some unusual and fun facts about the world of invasive species that might pique your interest. Let’s dive in!

Cane Toads

Did you know that the cane toad, a species originally native to South and Central America, was introduced to Australia to control pests in sugarcane fields? This is not the unusual fact. The bizarre aspect is that these toads carry poisonous glands and can kill predators that try to eat them! The Australian fauna, not adept at dealing with this new threat, became victims leading to a fall in their population.

Walking Catfish

Mind meet boggled! Imagine a fish that walks. Meet the walking catfish, an invasive species from Southeast Asia now found in Florida. They have a type of lung that allows them to breathe air and even 'walk' on land by wriggling their bodies and pushing forward with their pectoral fins. This peculiar trait lets them move to different bodies of water when their current home dries up.

Purple Loosestrife

The purple loosestrife, a flowering plant native to Europe, travelled to North America as an ornamental plant. Here comes the twist, this beautiful purple flower has an aggressive invasive trifecta – it reproduces rapidly, has no natural predators, and grows virtually anywhere! Often, an adult plant can produce up to 2.7 million seeds annually. This results in dense thickets that choke out native plants and disrupt habitats.

Snakehead Fish

Snakehead fish are natives to Africa and Asia. They can survive on land for up to 4 days and crawl to other bodies of water. Their nickname "Frankenfish" accurately reflects their predatory nature and adaptability. These resilience predators are a major concern as they might outcompete and eat native species.

Killer Bees

Stronger, faster, more aggressive – no, we're not talking about a science fiction monster, we're referring to 'killer bees'. They were produced in Brazil during an attempt to create a honey bee breed that would be better adapted to tropical climates. Some bees escaped and began to interbreed with local Brazilian bees. They earned their fearsome nickname due to their aggressive nature and tendency to chase people who disturbed them over long distances.

These are a few fun and unusual facts about the world of invasive species. However, on a serious note, it is essential to control and limit the spread of these species as they pose a threat to local ecosystems and biodiversity.


Our shared world is a fascinating place, home to a diverse array of species. However, the introduction of non-native species can have devastating impacts on local environments and economies. We must appreciate the inherent adaptability of life while also recognizing the need for responsible human actions in environmental conservation. With precautions, we can ensure that the story of invasive species is ultimately one of education and prevention rather than destruction.