<http://webisa.webdatacommons.org/268607159>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stemcellsresearch.net> .
<http://webisa.webdatacommons.org/268607159>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/211342174>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/268607159> .
<http://webisa.webdatacommons.org/268607159>	<http://www.w3.org/ns/prov#value>	"Humans by nature have poor night vision when compared with animals, mostly the eye lacks tapetum lucidum, which is a layer of tissue around the retina that reflects natural light back from the retina, increasing the light to the photoreceptors." .