Few books provide so much information in such a condensed form as 4000 Things You Should Know. Using small, digestible nuggets of information, this intriguing book introduces the reader to subjects as diverse dark matter, black holes, neutron stars, hot spots volcanoes, the Earth's core and mantle, earthquake measurement, the brain's synapses, chromosomes, osmosis, tendons and ligaments, pythons and boas, and strange sea creatures. The fascination of space, planet Earth, wild animals and our bodies meet in this extraordinary and thoroughly engaging book.