More than 2,500 plant species have the potential to invade the Arctic at the expense of the species that belong there. Norway is one of the areas that is particularly at risk.
Crazy Creatures on MSNOpinion
Alien jewel wasp larvae burst out of cockroaches - the parasite that turns prey into a host
The jewel wasp is a parasite with a method so precise it can turn a cockroach into a living host without killing it ...
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