Since the emergence of the microscope in the early seventeenth century, many claimed its invention, but many more have tried to improve it. Many problems have been resolved on the way, allowing us to poke directly with our own eyes […]
It is common to think that sci-fi writers are extremely creative and smart when they depict alien creatures with weird (and usually disgusting) ways of reproducing, generally using for this purpose the bodies of incautious and often naïve human characters. […]
In biology few issues are as basic as the division and classification of living things. Despite the differences shown by taxa that occupy each of the categories, all living things have a common ancestor and characteristics that unite them.