When an exotic species is introduced into a new environment, it undergoes an artificial selection process that makes the final population genetically different from the original population.
The smallest cetacean in the world is endemic to the Gulf of California, and fishing, climate change and transfers of the Colorado River are condemning it to extinction.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.