This new eighth edition has been fully revised and updated to reflect recent progress in the fields of biology, biophysics, and biochemistry, with particular expansion to the areas of research design and plant and animal development. Over 120 new entries include de-extinction, ecological footprint, rewilding, and Zika virus, now totalling over 5,600 authoritative and up-to-date entries. Numerous appendices include classifications of the animal and plant kingdoms, SI units, Nobel prizewinners, and a new appendix on anatomical terms. With new diagrams and updated web links, this remains the market-leading dictionary for students of biology, both at sixth form college and university level. Preface A-Z entries Appendices: SI units Simplified phylogenetic tree of the animal kingdom Simplified phylogenetic tree for plants Geological time scale Model organisms and their genomes Major mass extinctions of species Nobel prizewinning contributions to biology Evolution Anatomical terms Useful websites Robert Hine was educated at King's College London and the University of Aberdeen. A professional freelance writer and editor since 1984, he has worked on numerous books and journals for both the UK and American markets. Specialist areas include life sciences, health, and the environment. He is also manager of a community-based website promoting energy efficiency, renewable energy, and sustainability.