Eli5: how do invasive species work?

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When you see lion fish or anacondas as invasive.. how does that work? If they live there how did they get there and what does it do to have invasive species that people are just killing animals to prevent it?

In: Planetary Science

6 Answers

Anonymous 0 Comments

Humans put them there, either on purpose by releasing them from captivity or by accident when they took a ride with forty tons of bananas on a cargo ship.

They’re a problem because they’re now in an environment that hasn’t had hundreds of thousands of years to evolve with them. A Boa Constrictor that gets loose in Florida will find an environment with lots of easy prey and very few predators adapted to hunting large snakes. They populate out of control because they eat everything and nothing eats them, and native reptiles get squeezed (literally sometimes) out.

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