Classificação da Biblioteca do Congresso dos E.U.A. (LCC)QL947.P47

anatomy(366) animals(2,212) artwork(9) bat(5) beach(51) biology(392) birds(99) bodies(19) body(115) body parts(147) children(111) children's(139) children's picture book(14) creature(8) dedication(19) differences(11) early reader(22) easy reader(22) educational(28) elementary(14) environment(25) evolution(106) eyes(102) fish(32) funny(22) Grade 2(23) health(33) human(9) human anatomy(13) humans(13) informational(228) informative(34) insects(65) juvenile(39) juvenile non-fiction(34) kids(45) life science(80) literary nonfiction(49) lizards(20) mammals(77) medical(23) medicine(22) nature(223) ocean(101) oceans(19) photographs(16) photography(37) physiology(40) picture book(492) prediction(10) preschool(22) primary(18) reference(98) reptiles(65) research(39) science(1,260) science nonfiction(30) sea life(16) skeleton(102) skin(9) snakes(22) teeth(161) turtles(33) vision(18) vocabulary(52) whales(16) what if(7) wild animals(25) wildlife(14) wings(15) younger(8) youth(19) zoo(20) zoo animals(14)