RT Journal Article SR Electronic T1 A Tangled Tale from the Biology Classroom JF Science JO Science FD American Association for the Advancement of Science SP 516 OP 517 DO 10.1126/science.200.4341.516 VO 200 IS 4341 A1 FACIAM, CAPTUS MELIUS YR 1978 UL http://science.sciencemag.org/content/200/4341/516.abstract AB