Mysteries of the Human Body
Season 12
Episodes
471. Episode 471
August 28, 2013
472. Episode 472
September 4, 2013
473. Episode 473
September 11, 2013
474. Episode 474
September 18, 2013
475. Episode 475
September 25, 2013
476. Episode 476
October 2, 2013
477. Episode 477
October 9, 2013
478. Episode 478
October 16, 2013
479. Episode 479
October 23, 2013
480. Episode 480
October 30, 2013
481. Episode 481
November 6, 2013
482. Episode 482
November 13, 2013
483. Episode 483
November 20, 2013
484. Episode 484
November 27, 2013
485. Episode 485
December 4, 2013
486. Episode 486
December 11, 2013
487. Episode 487
December 18, 2013
No cast information available