Sections
There is no single hard-and-fast rule for distinguishing rock from bone, but there are a few principles that can definitely help you tell the difference
February 3, 2010
February 2, 2010
February 1, 2010
January 29, 2010
January 28, 2010
Page 258 of 337
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520083205Illu_compact_spongy_bone-300x173.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/super-bowl-gumbo.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520102322plasticbag-300x300.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/Los_Texmaniacs_CD_Cover1.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520083205Dimetrodon_skeleton-300x199.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/SERCPNAS_8844w.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520102319Final-Immortal-Life-Cover.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/npg_78_tc723.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/2011052009011547250645_2d4af525a8-300x400.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520083205Haplocheirus-skeleton-300x119.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/carver_AAM_feb1.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520102319Lysenko_in_field_with_wheat-232x299.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/taishan_NZ_jan29.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/linda2.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/201105200832053239011147_b363204571-300x199.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/20110520102318romanian_eclipse12.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/LG-with-Wittlesbach-on-hand-300x249.jpg)
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/db/30/db303872-55a1-4a6d-a1e2-230b0c4a39d7/coffeecheesedaftgirly2543206128_ce830fd619-400x300.jpg)