simple life cycled organisms. Also, if organisms are evolutionary flexible, then these organisms may escape extinction. The area with that has the greatest effect of coextinction is the tropics. There is a continued disappearance in the habitat, human intervention, and a great loss in vital ecosystem services. This is threatening because the tropics contain 2/3 of the all known species but they aren't in a situation where they can be fully taken care of. Along with forest loss other risk factors include: coastal development, overexploitation of wildlife, and habitat conversion, that also affect human well-being. In an effort to find a stop to coextinction, researchers have found that the first step would be to conserve the host species in which other species are dependent on. These hosts serve as major components for their habitat and need them to survive. In deciding what host to protect, it is important to choose one that can benefit an array of other dependent species. See also Dodo and tambalacoque, for a supposed case of near-coextinction that turned out to be much more complex References External links The Extinction Website Extinction