Biological invasions occur when organisms such as animals and plants are introduced by people to regions of the world where they do not naturally occur. In these new locations, these organisms are ...
Dragonfish are a rarely seen species of deep-sea fish, and are alien-like in appearance. Read here to learn more about these ...
Discover Wildlife on MSN
They are a major threat to wildlife around the world, as native animals are ill-equipped to ...
Mark Carwardine demystifies the issues surrounding alien species.
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