Classificação da Biblioteca do Congresso dos E.U.A. (LCC)QL638.M41

anatomy(25) animals(2,464) beach(23) behavior(26) biology(736) California(58) Caribbean(49) children(218) children's(267) conservation(84) dolphins(44) early reader(120) easy reader(102) ecology(163) education(52) educational(31) elementary(27) endangered species(20) environment(116) evolution(75) fish(2,696) fishing(294) Grade 2(46) green(24) guide(66) guidebook(42) Hawaii(64) history(273) informational(303) informative(21) juvenile(93) juvenile non-fiction(64) kids(72) life cycle(70) life science(79) mammals(27) marine(137) marine life(307) narrative nonfiction(16) natural science(58) natural world(13) nature(1,069) New Jersey(59) North America(62) ocean(2,024) oceanography(91) oceans(478) outdoors(33) Pacific(24) pets(30) photographs(62) photography(62) physiology(31) picture book(440) primary(30) reader(46) reference(348) references(17) reproduction(18) research(42) rivers(54) science(2,776) science nonfiction(33) sea(298) sea life(331) seas(17) species(36) trout(45) whales(58) wildlife(122) youth(34)