Technological advancements in biological science have forged phenomenal frontiers, and we have yet to tap one iota of their potential. The achievements of physicists, chemists, mathematicians, computer engineers and biotechnical engineers have long since outpaced the archaic methods of animal experimentation.
Breakthroughs in physics have allowed imaging techniques such as CAT, MRI and PET scans. Our ability to understand disease processes has been vastly improved through X-ray crystalography, single molecule spectroscopies, and nuclear magnetic resonance. Ultrasound, blood-gas analysis machines, blood chemistry analysis machines, microscopes, monitoring devices, electrocardiograms, and electroencephalograms all provide windows into the human body without using animals.
Chemistry has contributed greatly to DNA sequencing and gene chips, as well as drug delivery devices, biocompatible materials, and separation/purification methods and many more breakthroughs. Mathematics and computer science have given us the Fast Fourier transformers used in spectroscopy and CAT scans, fast sequence alignment and database methods used in genomics, conformational search and optimization methods used in protein folding, and ecological and population models of disease.
Computer and mathematical modeling have recently led to new treatments for breast cancer, AIDS, high blood pressure, and aided development of new prosthetics. By mimicking the shape and structure of molecules known to be therapeutic, scientists can improve their design to be even more effective. Similarly, known toxic chemicals can be analyzed to predict toxicity without resorting to unreliable animal testing.