Editing Magnetism (section)

== Living things ==
[[File:Frog diamagnetic levitation.jpg|right|thumb|A live frog levitates inside a 32 [[millimetre|mm]] [[diameter]] vertical bore of a [[Bitter solenoid]] in a very strong magnetic field—about 16 [[tesla (unit)|teslas]]]]
Some [[organisms]] can detect magnetic fields, a phenomenon known as [[magnetoception]]. Some materials in living things are ferromagnetic, though it is unclear if the magnetic properties serve a special function or are merely a byproduct of containing iron. For instance, [[chitons]], a type of marine mollusk, produce magnetite to harden their teeth, and even humans produce [[magnetite]] in bodily tissue.<ref>{{cite journal|last1=Kirschvink|first1=Joseph L.|last2=Kobayashi-Kirshvink|first2=Atsuko|last3=Diaz-Ricci|first3=Juan C.|last4=Kirschvink|first4=Steven J.|title=Magnetite in Human Tissues: A Mechanism for the Biological Effects of Weak ELF Magnetic Fields|journal=Bioelectromagnetics Supplement|date=1992|volume=1|pages=101–113|doi=10.1002/bem.2250130710|pmid=1285705|url=http://web.gps.caltech.edu/~jkirschvink/pdfs/KirschvinkBEMS92.pdf|access-date=29 March 2016}}</ref> 

[[Magnetobiology]] studies the effects of magnetic fields on living organisms; fields naturally produced by an organism are known as [[biomagnetism]]. Many biological organisms are mostly made of water, and because water is [[diamagnetic]], extremely strong magnetic fields can repel these living things.