biodiversity

A: what do you think about exotic species and their influence to biodiversity?
B:The rich diversity of unique species across many parts of the world exist only because they are separated by barriers, particularly large rivers, seas, oceans, mountains and deserts from other species of other land masses.
A:are humans doing everything to protect those natural barriers and trying to protect all those exotic species?
B:These are barriers that couldn't have been easily crossed by natural processes, except through continental drift. However, humans have invented transportation with the ability to bring into contact species that they've never met in their evolutionary history.
A:are exotic species threat to biodiversity?
B:The widespread introduction of exotic species by humans is a potent threat to biodiversity. When exotic species are introduced to ecosystems and establish self-sustaining populations, the endemic species in that ecosystem that have not evo