Gallery: 10 highly destructive plants and animals

Although they're no competition for humans, some plants and animals can do quite a bit of harm to their environments. Sometimes it's because they're invasive species, other times it's because their natural predators have disappeared and once in a while, it's simply in their nature. Take a look at 10 of the most destructive species on the planet.

Officials with the snakehead fish after it was captured from Burnaby's Central Lake pond Friday.

This snakehead fish caused a small panic when it was spotted in Burnaby's Central Lake this year. The highly invasive species has no predators outside of its natural environment in Asia and is able to travel short distances over land by wriggling on the ground. It's been blamed for destroying North American waterways by eating every species in its path.

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