A Top
Acarina
http://www.nhm.ac.uk/hosted_sites/acarology/
More information about mites and ticks, including news, publications, and societies
AIDS
http://www.who.int/topics/hiv_infections/en/
Latest initiatives to combat HIV and AIDS, with WHO technical reports and statistics
allergy
http://www.nlm.nih.gov/medlineplus/ency/article/000812.htm
Overview of common allergies, tests, and treatments, with illustrations of some typical symptoms
Alvarez event
http://serc.carleton.edu/research_education/cretaceous/ktbou...
Resources detailing the evidence and main theories regarding mass extinctions and the Alvarez event
amino acid
http://biomodel.uah.es/en/model3/index.htm
Depicts molecular structures of all the amino acids
Amphibia
http://amphibiaweb.org/index.html
Hosted by the University of California, Berkeley, gives free access to information about amphibian biology and conservation
Annelida
http://www.ucmp.berkeley.edu/annelida/annelida.html
A basic roundup of evolution, life history, systematics, and morphology
Anthocerophyta
http://www3.uakron.edu/biology/hornworts/hornworts.html
An entry into the world of hornworts, with links to images
Anthophyta
http://www.tolweb.org/Anthophyta/20646
Overview of flowering plant diversity and systematics
antibiotics
http://www.nlm.nih.gov/medlineplus/antibiotics.html#cat1
Information about the use and abuse of antibiotics and the search for new ones
apoptosis
http://www.sgul.ac.uk/depts/immunology/~dash/apoptosis/index...
Introduction to apoptosis with graphics and animations
Arachnida
http://www.arachnology.be/Arachnology.html
Descriptions and pictures for all orders of arachnids, plus societies, spider pages, and arachnids in literature
atomic force microscopy
http://www.nanoscience.com/education/AFM.html
Succinct account of the technique
ATP synthetase
http://www.biologie.uni-osnabrueck.de/biophysik/Junge/pics.html
Models and animations of ATP synthetase and ATP formation
Aves
http://www.birdlife.org/worldwide/index.html
Global partnership of organizations involved in bird conservation
B Top
bacteria
http://www.textbookofbacteriology.net/
Online textbook of bacteriology devised by Kenneth Todar, University of Wisconsin-Madison
bacteriophage
http://www.asm.org/division/M/M.html#nature
Overview of phage biology and diversity sponsored by the American Society of Microbiology
biochemistry
http://www.biochemweb.org/
A virtual library of biochemistry, cell biology, and molecular biology
biofuel
http://www.biofuelwatch.org.uk/
Highlights the dangers of unsustainable biofuel production
biological clock
http://template.bio.warwick.ac.uk/staff/amillar/andrewM/Jo%2...
Covers many aspects of biological clocks and biorhythms
biology
http://www.biology.arizona.edu/
This University of Arizona website contains useful links to various fields, including biochemistry, cell biology, and human biology
bioluminescence
http://www.lifesci.ucsb.edu/~biolum/
Comprehensive overview of bioluminescence hosted by the University of California at Santa Barbara
blood clotting
http://web.indstate.edu/thcme/mwking/blood-coagulation.html
Overview of blood coagulation and its disorders from the Indiana University School of Medicine
bone
http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Bone/Bone.htm
Descriptions and images of bone tissue from the School of Anatomy and Human Biology, University of Western Australia
brain
http://thebrain.mcgill.ca/flash/index_d.html
Multilevel exploration of brain structure and function, sponsored by the Canadian Institutes of Health Research
Bryophyta
http://bryophytes.plant.siu.edu/
A resource devoted to mosses, liverworts, and hornworts from Southern Illinois University Carbondale
C Top
Cambrian
http://wwwalt.uni-wuerzburg.de/palaeontologie/Stuff/casu5.htm
Illustrated insights into Cambrian stratigraphy and life forms from the International Subcommission on Cambrian Stratigraphy
cancer
http://www.cancerquest.org/
Extensive multimedia coverage of cancer biology and different types of cancer, produced by Emory University
carbohydrate
http://web.indstate.edu/thcme/mwking/carbohydrates.html
Summary of carbohydrate nomenclature and classification
cardiac cycle
http://library.med.utah.edu/kw/pharm/hyper_heart1.html
Animation of the cardiac cycle explaining the changes in blood pressure, heart sounds, and ECG trace
cartilage
http://www.lab.anhb.uwa.edu.au/mb140/CorePages/Cartilage/Car...
Images and descriptions of different types of cartilage
cell
http://cellbio.utmb.edu/cellbio/
A wide range of topics in cell biology, developed for the University of Texas Cell Biology Graduate Program
cell adhesion molecule
http://bioweb.wku.edu/courses/biol566/L21AdhesionSigTransdct...
Summary of the main types of CAMs, produced by Western Kentucky University Biology Department
cell division
http://www.pbs.org/wgbh/nova/baby/divide.html#
Animation comparing mitosis with meiosis
Cenozoic
http://www.ucmp.berkeley.edu/cenozoic/cenozoic.html
Survey of the Cenozoic era by the University of California Museum of Paleontology
Cetacea
http://www.wdcs.org/
Website for the Whale and Dolphin Conservation Society
Chiroptera
http://www.batcon.org/home/index.asp?idPage=4
Website of Bat Conservation International, dedicated to conservation, education, and research concerning bats
Chordata
http://www.tolweb.org/Chordata
Tree of Life web page outlining main characteristics and phylogeny of chordates
chromatin
http://www.accessexcellence.org/RC/VL/GG/ecb/chromatin_packi...
Diagram showing levels of chromatin packing
chromosome
http://learn.genetics.utah.edu/units/basics/tour/chromosome.swf
Series of animated slides about chromosomes, produced by the Genetic Science Learning Center of Utah State University
cilium
http://www.cytochemistry.net/Cell-biology/cilia.htm
Details of the ultrastructure of cilia and flagella
Cnidaria
http://www.ucmp.berkeley.edu/cnidaria/cnidaria.html
A summary of cnidarian biology and systematics: part of the website of the University of California Museum of Paleontology
complement
http://www.cehs.siu.edu/fix/medmicro/cment.htm
An illustrated roundup of complement components, activation, and regulation, from Illinois University Carbondale
compound eye
http://science.exeter.edu/jekstrom/Bee/Eye/Eye.html
A series of magnified images of a bee's compound eyes
Coniferophyta
http://www.botany.hawaii.edu/faculty/webb/Bot201/Conifers/co...
Well-illustrated survey of conifer biology, hosted by the University of Hawaii
continental drift
http://www.ucmp.berkeley.edu/geology/anim1.html
Animation of continental drift during the earth's history
coxal glands
http://www.ucmp.berkeley.edu/mesozoic/cretaceous/cretlife.html
Overview of the Cretaceous period: part of the website of the University of California Museum of Paleontology
Crustacea
http://www.crustacea.net/index.htm
An interactive information retrieval system for crustaceans, hosted by Australian Museum Online
http://tolweb.org/Crustacea/2529
Overview of crustacean phylogeny at the Tree of Life web project
Cyanobacteria
http://www-cyanosite.bio.purdue.edu/
Webserver for cyanobacterial research, hosted by Purdue University: contains links to numerous images
cytoskeleton
http://www.search.com/reference/Cytoskeleton
Coloured image showing distribution of cytoskeletal components in a cell
D Top
Darwin, Charles
http://darwin-online.org.uk/
The complete works of Charles Darwin online
desmosome
http://anatomy.iupui.edu/courses/histo_D502/D502f04/lecture....
Images of cell ultrastructure, including a desmosome
Devonian
http://www.ucmp.berkeley.edu/devonian/devonian.html
The Devonian period as described on the website of the University of California Museum of Paleontology
dinosaur
http://internt.nhm.ac.uk/jdsml/nature-online/dino-directory/
A Dino Directory produced by the Natural History Museum, London
DNA
http://www.dnaftb.org/dnaftb/
An animated primer on basic aspects of DNA, genes, and heredity, produced for the Cold Spring Harbor Laboratory
E Top
Echinodermata
http://tolweb.org/Echinodermata
Overview of echinoderm characteristics and phylogeny from the Tree of Life project
ecosystem
http://www.millenniumassessment.org/en/index.aspx
The latest Millennium Ecosystem Assessment Reports commissioned by the United Nations
electron microscope
http://micro.magnet.fsu.edu/primer/java/electronmicroscopy/m...
Tutorial featuring virtual scanning electron microscopy, created by the Optical Microscopy Division of the National High Magnetic Field Laboratory
embryology
http://embryology.med.unsw.edu.au/
This site, hosted by the University of New South Wales, explores human embryology and development
endangered species
http://www.iucn.org/
Website of the IUCN
evolution
http://evolution.berkeley.edu/evolibrary/home.php
The evidence for and mechanisms of evolution, from Understanding Evolution, created by the University of California Museum of Paleontology
extracellular matrix
http://cellbiology.med.unsw.edu.au/units/science/lecture08.htm
Online lecture on the extracellular matrix from a Cell Biology strand, devised by Mark Hill of the University of New South Wales
eye
http://webvision.med.utah.edu/anatomy.html
Gross anatomy of the eye, prepared at the John Moran Eye Center, University of Utah
H Top
heart
http://www.bartleby.com/107/illus490.html
Sequence of diagrams of the human heart from Gray's Anatomy
Hemichordata
http://www.ucmp.berkeley.edu/chordata/hemichordata.html
Introduction to the hemichordates, on the website of the University of California Museum of Paleontology
Hepatophyta
http://www.bio.umass.edu/biology/conn.river/liverwts.html
Illustrated roundup of liverwort features, from the University of Massachusetts
herpesvirus
http://darwin.bio.uci.edu/~faculty/wagner/movieindex.html
Animations of herpes simplex virus infection and replication
Hexapoda
http://www.museums.org.za/bio/insects/index.htm
Illustrated survey of the main insect orders, compiled by Iziko Museums of Cape Town
homeotic genes
http://nobelprize.org/nobel_prizes/medicine/laureates/1995/i...
Description of homeotic genes in Drosophila, based on the poster for the 1995 Nobel Prize for Physiology or Medicine
hominid
http://www.becominghuman.org/news
Interactive documentary narrated by palaeontologist Donald Johanson and presented by the Institute of Human Origins, Arizona State University
I Top
ice age
http://www.pbs.org/wgbh/nova/ice/
Sponsored by the US Public Broadcasting Service, this site explains why the earth warms up and cools down
immunity
http://www-immuno.path.cam.ac.uk/~immuno/part1.html
Material from an immunology course prepared by Nick Holmes in the Department of Pathology, University of Cambridge
immunoglobulin
http://pathmicro.med.sc.edu/mayer/IgStruct2000.htm
Antibody structure covered in depth as part of Microbiology and Immunology Online, produced by the University of South Carolina
impulse
http://nerve.bsd.uchicago.edu/
Details of nerve impulses and other aspects of neurophysiology
integrated pest management
http://www.pestmanagement.co.uk/
Website of the Integrated Pest Management Resource Centre
ion channel
http://www.chemsoc.org/ExemplarChem/entries/2002/Tim_Smith/c...
Summary of ion channels, enhanced by graphics, compiled for the Royal Society of Chemistry
M Top
magnetic resonance imaging
http://www.cis.rit.edu/htbooks/mri/inside.htm
Comprehensive online textbook covering all aspects of MRI
malaria
http://www.cdc.gov/malaria/
Coverage of all aspects of malaria, from the website of the US Centers for Disease Control
Mammalia
http://www.bbc.co.uk/nature/animals/mammals/
The Life of Mammals website from the BBC
mass spectrometry
http://www.astbury.leeds.ac.uk/facil/MStut/mstutorial.htm
The principles and biological applications of mass spectrometry described by Alison Ashcroft, University of Leeds
memory
http://plato.stanford.edu/entries/memory/
Comprehensive account of concepts and models of memory, from the Stanford Encyclopedia of Philosophy
microbiology
http://www.sgm.ac.uk/
Home page of the Society for General Microbiology
microscope
http://www.biologie.uni-hamburg.de/b-online/e03/03.htm
Web pages from Botany Online, describing the basic microscopical techniques used in biology
mimicry
http://www.ucl.ac.uk/~ucbhdjm/courses/b242/Mimic/Mimic.html
Summary of the lecture `Warning colour and mimicry', from the Department of Biology, University College London
mitochondrion
http://cellbio.utmb.edu/cellbio/mitoch1.htm#Menu
Overview of mitochondrial structure and function, produced for the University of Texas Cell Biology Graduate Program
molecular biology
http://www.embo.org/
Website of the European Molecular Biology Organization
Mollusca
http://www.malacsoc.org.uk/
Website of the Malacological Society of London, dedicated to the advancement of knowledge and research on molluscs
muscle
http://www.gwc.maricopa.edu/class/bio201/muscle/mustut.htm
Interactive tutorial identifying the principal muscles of the human body
mutation
http://www.dnaftb.org/dnaftb/27/concept/index.html
First of two topics on mutation from the online resource DNA From The Beginning
N Top
Neanderthal man
http://www.mnh.si.edu/anthro/humanorigins/ha/neand.htm
Illustrated account of Neanderthal features and fossil record, from the Smithsonian Institution
Nematoda
http://nematologists.org/
Website of the Society of Nematologists; Education Committee link accesses many images of nematodes
nervous system
http://www.innerbody.com/image/nervov.html
Basic interactive guide to the anatomy of the human nervous system, from Human Anatomy Online
neurotransmitter
http://web.indstate.edu/thcme/mwking/nerves.html#catecholamines
Summary of the main neurotransmitters, their biochemistry, and mode of action, from the Medical Biochemistry pages of Indiana University
Nomarski microscope
http://www.olympusmicro.com/primer/techniques/dic/dicovervie...
Overview of Nomarski microscopy with interactive tutorials, from Olympus Microscopy Resource Center
P Top
palaeobotany
http://www.ucmp.berkeley.edu/IB181/VPL/Dir.html
Virtual palaeobotany lab constructed by the University of California Museum of Paleontology
parasitism
http://www.dpd.cdc.gov/DPDx/
Descriptions of human parasites feature in this website from the US Centers for Disease Control and Prevention
pathology
http://library.med.utah.edu/WebPath/webpath.html#MENU
An Internet Pathology Laboratory providing an online resource for pathology students, from Florida State University College of Medicine
Permian
http://www.ucmp.berkeley.edu/permian/permian.html
Overview of the Permian period from the University of California Museum of Paleontology
pesticide
http://www.pesticides.gov.uk/corporate.asp?id=211
Website of the Pesticide Safety Directorate, which oversees pesticide use in the UK
pharmacogenomics
http://learn.genetics.utah.edu/units/pharma/phwhatis/
Account of pharmacogenetics and pharmacogenomics: part of the University of Utah's Genetic Science Learning Center
photosynthesis
http://www.chemsoc.org/networks/learnnet/cfb/photosynthesis.htm
Summary of photosynthesis, with illustrations and animations, compiled by the Royal Society of Chemistry
Pisces
http://www.austmus.gov.au/fishes/index.cfm
The Australian Museum Fish Site, an extensive site catering for fish enthusiasts at various levels
plant
http://ucjeps.berkeley.edu/Map1.html
Movable hyperbolic tree of plant phylogeny, devised by `Deep Green' and hosted by the University of California, Berkeley
Platyhelminthes
http://www.ucmp.berkeley.edu/platyhelminthes/platyhelminthes...
Brief introduction to flatworms from the website of the University of California Museum of Paleontology
pollution
http://www.blacksmithinstitute.org/ten.php
The Blacksmith Institute's top ten worst polluted places in the world
polymerase chain reaction
http://www.dnalc.org/ddnalc/resources/pcr.html
Animated account of PCR from the DNA Learning Center
Porifera
http://animaldiversity.ummz.umich.edu/site/accounts/informat...
Overview of the sponges, including their biology and classification, from the University of Michigan's Museum of Zoology Diversity Web
Precambrian
http://www.ucmp.berkeley.edu/precambrian/precambrian.html
Perspectives on Precambrian time provided by the website of the University of California Museum of Paleontology
Primates
http://anthro.palomar.edu/primate/
Wide-ranging account of primate characteristics and taxonomy, compiled by Dennis O'Neil, Palomar College, California
protein
http://www.biochemweb.org/proteins.shtml
Comprehensive survey of protein biochemistry, from the Virtual Library of Biochemistry, Molecular Biology and Cell Biology
R Top
radiobiology
http://www.science.mcmaster.ca/mciars/Doug%20Boreham/Website...
A series of illustrated lectures on basic clinical radiobiology, compiled by Doug Boreham of McMaster University
rainforest
http://www.ran.org/
Website for Rainforest Action Network, an international organization that campaigns to protect the rainforests
Reptilia
http://www.tolweb.org/Amniota/14990
This Amniota page from the Tree of Life project shows the phylogenetic relationships of reptile groups, birds, and mammals
respiration
http://biology.about.com/library/weekly/aa090601a.htm
Overview of cellular respiration, with animation and illustrations, from About.com.
retina
http://webvision.med.utah.edu/sretina.html
Anatomy of the retina, prepared by members of the John Moran Eye Center, University of Utah
retrovirus
http://www.stanford.edu/group/nolan/tutorials/tutorials.html
Series of tutorials about retroviruses and their applications, compiled by the Nolan Lab of Stanford University
RNA
http://www.dnaftb.org/dnaftb/21/concept/index.html
Animated account of the roles of RNA in protein synthesis: part of the website DNA from the Beginning
RNA processing
http://www.dnaftb.org/dnaftb/24/concept/index.html
Animated account of RNA processing: part of the website DNA from the Beginning
Rotifera
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www...
Basic descriptions and striking images of rotifers by Wim van Egmond
S Top
scanning probe microscopy
http://www.nanoscience.com/education/tech-overview.html
Overview of scanning probe microscopy techniques produced by Nanoscience Instruments Inc
senescence
http://www.senescence.info/
Examination of the causes and consequences of ageing, compiled by Joćo Pedro de Magalhćes of Harvard University
sexually transmitted disease
http://www.rcgp.org.uk/PDF/clinspec_STI_in_primary_care_NLaz...
Extensive account of STDs from the Royal College of General Practitioners
signal transduction
http://www.sigmaaldrich.com/Area_of_Interest/Life_Science/Ce...
Information, images, and web tools about cell signal pathways, created by biochemicals company Sigma-Aldrich
Silurian
http://www.ucmp.berkeley.edu/silurian/silurian.html
Brief survey of the Silurian period on the website of the University of California Museum of Paleontology
skeleton
http://www.eskeletons.org/
The e-Skeletons Project site explores the comparative skeletal anatomy of humans and other primates
stem cell
http://www.stemcellforum.org/
Website of the International Stem Cell Forum, which promotes good practice and progress in stem cell research
synapse
http://thebrain.mcgill.ca/flash/a/a_01/a_01_m/a_01_m_fon/a_0...
Multilevel summary of synaptic function, sponsored by the Canadian Institutes of Health Research
