Krakatoa was an indonesian island that was completely obliterated in 1886, when a massive volcano exploded on the island. underwater lava flows slowly rebuilt a new island, called anak krakatau, by 1927. on anak krakatau, the first organisms to arrive were small weeds. the weeds then gave way to coconut trees. land crabs, seagulls, and rats began to colonize the island. by the 1980's, coconut trees gave way to tropical eucalyptus trees inland. wild pigs and large lizards colonized the island. in the future, a mature rainforest will re-grow.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

zxndjdjxjjxik no f cnnxn k is s dksoozkdkxjxjxjxj