Cũng như những loài linh trưởng khác, con người là một sinh vật xã hội. Hơn thế nữa, con người cũng rất thành thạo việc sử dụng ngôn ngữ trong giao tiếp, để biểu lộ những ý kiến riêng của mình và trao đổi thông tin. | Becoming a Fossil The fossil record of past life on Earth is full of holes. Given the great number of plants and animals that have lived and died on the planet fossils are s because onlyin certain circumstances can a dead plantoa a fl csil. l iec Cead arcaatamafrn ce meet thenecessary conditiontfoc fiitureaattnhooa. Beinn aaten ésa mr ocobstcctatnbarnmlag a fosail. I lcmsibciv-t eaten disbpccbewOchfotytthdigesaed rifoouhh rneirerrds may survive in the dropprtgc af thtnirhsor cnimrlsthrt atethenii and foci droppingsmayturgintit fetaiic Co scitzed fecas cceralled eopralitaa . Animals that aar f ameey baswallewtdwhnie ar torn epcrt andcer-ried off inpiecaiiOecruncaea to nits bcnar andril Cy cmtaltwtth powerful jawt. SometimetncOtblgrtmrms. nfmefevc hmd amain alfooughthayere lifohni bn btithan and fotmamneredfaom tht ikle ton. Findinf acomplatentnebbycomflale fotsilanimellc etrtH ac1 exciting cvernif ep .1110 08 11 1 are sintc bones. Mnoy of foambreteefolWhLrO crcamobg cVc harde ttabdmott durable bones. . Above Our human anyestorsoere likely to fall victim to predatory birds makinỊ1 it difficult for them to become fot sih .He re astcffed predator looms over a replica of the skull of the Taung child. 24 i Little Foot a 2- to 3-million-year-old fossil came to light in a South African cave. If predators and scavengers do not entirely destroy a carcass other threats await. Soft tissue decomposes leaving bare bones that can be trampled by herdsofgrazinganimals crackedopen by heat or eroded by rain andseindblewnohnd. But if abodyorabono is quieidyeoveredby send psh rrsenro other sedimene feaibizenoo maytege place. As water tnckles through the sedimentMidthel ire ftcaro s mineraSr foomiha sedimentínto the bono. TSfrsni s ek graduabyeevlero ehp oeopnic maiisf- rbe bone peia e v ereemiap itto stood. I berv ebfeficaOvv here guarantee fort e fossa wiv e i e rs . Windr Ob flaods mey expoib the underoeound lahbrcoitoinlng ehe-foriO. Onpe in .
