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  • Stronger Than Steel: Spider Silk DNA and the Quest for Better Bulletproof Vests, Sutures, and Parachute Rope (Scientists in the

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Buy from Amazon $16.23$0.01 $17.50 $13.13 $8.75 $4.38 Dec Mar Jun Sep Dec Mar Jun Sep Dec Mar Jun 2014 2015 2016 $16.23, Sep 19 - Dec 27$15.23, Dec 29 - Jan 23$15.29, Jan 24 - Aug 3$15.29, Jan 24 - Aug 3$9.13, May 3 - May 16$5.63, May 3 - May 6$15.29, Jan 24 - Aug 3$9.13, May 3 - May 16$5.55, May 6 - May 13$15.29, Jan 24 - Aug 3$9.13, May 3 - May 16$7.30, May 15 6:58 am$15.29, Jan 24 - Aug 3$9.12, May 17 - May 21$7.26, May 16 - Jun 7$15.29, Jan 24 - Aug 3$8.92, May 22 10:16 pm$7.26, May 16 - Jun 7$15.29, Jan 24 - Aug 3$8.59, May 24 9:06 pm$7.26, May 16 - Jun 7$15.29, Jan 24 - Aug 3$8.22, May 27 10:25 am$7.26, May 16 - Jun 7$15.29, Jan 24 - Aug 3$9.13, May 30 - Jun 3$7.26, May 16 - Jun 7$15.29, Jan 24 - Aug 3$10.63, Jun 4 - Jun 11$7.26, May 16 - Jun 7$15.29, Jan 24 - Aug 3$10.63, Jun 4 - Jun 11$7.25, Jun 8 - Jun 10$15.29, Jan 24 - Aug 3$10.80, Jun 12 - Jun 17$7.24, Jun 11 - Jun 18$15.29, Jan 24 - Aug 3$10.63, Jun 18 - Jun 19$7.24, Jun 11 - Jun 18$15.29, Jan 24 - Aug 3$10.80, Jun 19 - Jun 21$6.99, Jun 20 5:30 pm$15.29, Jan 24 - Aug 3$10.77, Jun 22 - Jun 23$6.71, Jun 22 11:37 pm$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$6.65, Jun 25 6:58 am$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$6.58, Jun 27 3:46 pm$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$6.49, Jun 30 - Jul 8$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$6.45, Jul 9 8:40 am$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$6.35, Jul 11 7:49 pm$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$6.29, Jul 14 - Jul 17$15.29, Jan 24 - Aug 3$10.74, Jun 24 - Jul 19$7.49, Jul 19 - Jul 20$15.29, Jan 24 - Aug 3$10.47, Jul 21 4:26 pm$6.62, Jul 21 4:26 pm$15.29, Jan 24 - Aug 3$9.89, Jul 23 - Jul 25$6.76, Jul 24 7:51 pm$15.29, Jan 24 - Aug 3$10.74, Jul 26 - Aug 20$7.49, Jul 25 - Jul 27$15.29, Jan 24 - Aug 3$10.74, Jul 26 - Aug 20$7.48, Jul 28 - Jul 30$15.29, Jan 24 - Aug 3$10.74, Jul 26 - Aug 20$7.49, Jul 31 - Aug 1$15.29, Jan 24 - Aug 3$10.74, Jul 26 - Aug 20$7.48, Aug 2 1:10 am$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.49, Aug 5 6:42 pm$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.48, Aug 7 - Aug 9$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.49, Aug 10 3:01 am$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.46, Aug 12 10:29 pm$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.39, Aug 15 7:03 pm$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.33, Aug 17 11:13 pm$14.50, Aug 4 - Aug 22$10.74, Jul 26 - Aug 20$7.29, Aug 20 1:41 am$14.50, Aug 4 - Aug 22$10.46, Aug 21 - Sep 1$7.23, Aug 22 8:42 am$15.11, Aug 23 - Sep 15$10.46, Aug 21 - Sep 1$7.20, Aug 24 10:38 am$15.11, Aug 23 - Sep 15$10.46, Aug 21 - Sep 1$7.12, Aug 27 4:27 pm$15.11, Aug 23 - Sep 15$10.46, Aug 21 - Sep 1$7.07, Aug 29 9:37 pm$15.11, Aug 23 - Sep 15$10.46, Aug 21 - Sep 1$6.99, Sep 1 5:43 am$15.11, Aug 23 - Sep 15$10.33, Sep 2 - Sep 10$6.91, Sep 3 2:12 pm$15.11, Aug 23 - Sep 15$10.33, Sep 2 - Sep 10$6.87, Sep 6 12:06 am$15.11, Aug 23 - Sep 15$10.33, Sep 2 - Sep 10$6.81, Sep 8 9:09 am$15.11, Aug 23 - Sep 15$10.33, Sep 2 - Sep 10$6.76, Sep 10 6:39 pm$15.11, Aug 23 - Sep 15$9.06, Sep 13 - Sep 15$6.61, Sep 13 5:40 am$15.11, Aug 23 - Sep 15$9.06, Sep 13 - Sep 15$6.49, Sep 15 9:03 am$15.29, Sep 16 - Sep 28$10.25, Sep 18 2:27 pm$6.26, Sep 18 2:27 pm$15.29, Sep 16 - Sep 28$8.47, Sep 20 6:15 pm$6.10, Sep 20 6:15 pm$15.29, Sep 16 - Sep 28$6.99, Sep 22 6:26 am$6.00, Sep 22 6:26 am$15.29, Sep 16 - Sep 28$4.61, Sep 24 2:41 am$4.60, Sep 24 2:41 am$15.29, Sep 16 - Sep 28$3.05, Sep 28 - Sep 29$2.92, Sep 28 3:16 am$13.97, Sep 29 5:22 am$3.05, Sep 28 - Sep 29$2.76, Sep 29 5:22 am$15.29, Oct 1 - Oct 5$2.86, Oct 2 10:19 am$2.32, Oct 2 10:19 am$15.29, Oct 1 - Oct 5$7.65, Oct 4 4:46 pm$1.96, Oct 4 4:46 pm$13.30, Oct 7 - Oct 13$7.34, Oct 7 8:34 pm$1.72, Oct 7 8:34 pm$13.30, Oct 7 - Oct 13$5.34, Oct 10 3:34 am$1.65, Oct 10 3:34 am$13.30, Oct 7 - Oct 13$4.17, Oct 12 7:28 am$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$5.94, Oct 14 12:00 pm$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$5.68, Oct 16 3:47 pm$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$5.40, Oct 19 11:25 pm$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$5.21, Oct 22 4:46 am$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$4.10, Oct 24 11:05 am$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$6.66, Oct 26 7:27 pm$3.58, Oct 12 - Oct 26$15.29, Oct 14 - Nov 3$6.33, Oct 31 - Nov 3$3.54, Oct 31 8:37 pm$15.29, Oct 14 - Nov 3$6.33, Oct 31 - Nov 3$3.46, Nov 3 3:55 pm$12.38, Nov 7 - Nov 13$8.71, Nov 7 9:58 am$3.36, Nov 7 9:58 am$12.38, Nov 7 - Nov 13$8.08, Nov 10 1:28 pm$1.74, Nov 10 1:28 pm$12.38, Nov 7 - Nov 13$7.35, Nov 13 8:05 am$1.66, Nov 13 8:05 am$12.35, Nov 15 - Nov 27$6.20, Nov 17 9:20 pm$1.62, Nov 15 - Nov 17$12.35, Nov 15 - Nov 27$5.31, Nov 19 11:02 am$1.57, Nov 19 11:02 am$12.35, Nov 15 - Nov 27$4.60, Nov 21 12:29 pm$1.50, Nov 21 12:29 pm$12.35, Nov 15 - Nov 27$4.70, Nov 23 12:39 pm$1.43, Nov 23 12:39 pm$12.35, Nov 15 - Nov 27$4.98, Nov 27 1:26 pm$1.32, Nov 27 1:26 pm$13.26, Nov 29 - Dec 1$9.33, Nov 29 11:47 am$1.21, Nov 29 11:47 am$13.26, Nov 29 - Dec 1$9.44, Dec 1 - Dec 7$1.10, Dec 1 10:58 am$13.23, Dec 3 - Dec 18$9.44, Dec 1 - Dec 7$0.96, Dec 3 9:21 am$13.23, Dec 3 - Dec 18$9.44, Dec 1 - Dec 7$0.83, Dec 7 4:58 am$13.23, Dec 3 - Dec 18$9.85, Dec 9 6:47 am$0.68, Dec 9 6:47 am$13.23, Dec 3 - Dec 18$10.44, Dec 10 11:08 am$0.63, Dec 10 11:08 am$13.23, Dec 3 - Dec 18$9.44, Dec 14 9:02 am$0.41, Dec 14 9:02 am$13.23, Dec 3 - Dec 18$9.42, Dec 15 9:05 am$0.36, Dec 15 9:05 am$13.23, Dec 3 - Dec 18$9.42, Dec 18 9:11 am$0.17, Dec 18 9:11 am$14.00, Dec 22 - Dec 31$9.45, Dec 22 - Dec 24$2.98, Dec 22 - Dec 26$14.00, Dec 22 - Dec 31$10.40, Dec 26 5:29 am$2.98, Dec 22 - Dec 26$14.00, Dec 22 - Dec 31$9.45, Dec 27 - Jan 1$3.02, Dec 29 2:38 am$14.00, Dec 22 - Dec 31$9.45, Dec 27 - Jan 1$2.95, Dec 31 7:20 am$14.04, Jan 1 11:41 pm$9.45, Dec 27 - Jan 1$2.86, Jan 1 11:41 pm$14.17, Jan 14 - Jan 20$9.85, Jan 14 4:34 am$3.01, Jan 14 4:34 am$14.17, Jan 14 - Jan 20$9.86, Jan 15 - Jan 17$2.91, Jan 15 9:57 pm$14.17, Jan 14 - Jan 20$9.54, Jan 19 6:58 am$2.70, Jan 19 6:58 am$14.31, Jan 22 - Jan 27$9.78, Jan 22 10:57 am$3.04, Jan 22 - Jan 27$14.31, Jan 22 - Jan 27$9.47, Jan 23 7:03 am$3.04, Jan 22 - Jan 27$14.31, Jan 22 - Jan 27$9.77, Jan 26 1:51 pm$3.04, Jan 22 - Jan 27$14.45, Jan 29 - Feb 10$9.99, Jan 29 - Jan 30$3.09, Jan 29 - Feb 6$14.45, Jan 29 - Feb 10$9.95, Feb 1 6:06 pm$3.09, Jan 29 - Feb 6$14.45, Jan 29 - Feb 10$9.63, Feb 3 - Feb 10$3.09, Jan 29 - Feb 6$14.45, Jan 29 - Feb 10$9.63, Feb 3 - Feb 10$3.04, Feb 8 - Feb 12$14.30, Feb 12 - Feb 22$9.52, Feb 12 1:43 pm$3.04, Feb 8 - Feb 12$14.30, Feb 12 - Feb 22$8.68, Feb 15 8:11 am$2.98, Feb 15 8:11 am$14.30, Feb 12 - Feb 22$8.56, Feb 17 8:07 am$2.95, Feb 17 8:07 am$14.30, Feb 12 - Feb 22$8.47, Feb 19 5:10 am$2.91, Feb 19 5:10 am$14.30, Feb 12 - Feb 22$7.59, Feb 22 2:35 am$2.85, Feb 22 2:35 am$14.24, Feb 24 - Mar 4$6.81, Feb 24 12:51 am$2.81, Feb 24 12:51 am$14.24, Feb 24 - Mar 4$6.37, Feb 25 10:21 pm$2.76, Feb 25 10:21 pm$14.24, Feb 24 - Mar 4$4.97, Mar 1 8:11 pm$2.24, Mar 1 8:11 pm$14.24, Feb 24 - Mar 4$4.11, Mar 4 1:35 am$2.05, Mar 4 1:35 am$14.09, Mar 6 - Mar 12$3.74, Mar 6 4:44 am$1.79, Mar 6 4:44 am$14.09, Mar 6 - Mar 12$3.77, Mar 8 5:14 am$1.24, Mar 8 5:14 am$14.09, Mar 6 - Mar 12$8.59, Mar 10 10:37 am$0.71, Mar 10 10:37 am$14.09, Mar 6 - Mar 12$9.62, Mar 12 5:27 pm$0.18, Mar 12 5:27 pm$14.04, Mar 15 - Apr 3$9.45, Mar 16 - Mar 17$0.01, Mar 15 - Mar 21$14.04, Mar 15 - Apr 3$9.95, Mar 19 1:10 am$0.01, Mar 15 - Mar 21$14.04, Mar 15 - Apr 3$9.45, Mar 21 - Mar 25$0.01, Mar 15 - Mar 21$14.04, Mar 15 - Apr 3$9.45, Mar 21 - Mar 25$0.04, Mar 23 11:51 am$14.04, Mar 15 - Apr 3$9.45, Mar 21 - Mar 25$3.98, Mar 25 - Apr 14$14.04, Mar 15 - Apr 3$9.63, Mar 28 3:47 am$3.98, Mar 25 - Apr 14$14.04, Mar 15 - Apr 3$9.64, Mar 30 12:27 pm$3.98, Mar 25 - Apr 14$14.04, Mar 15 - Apr 3$9.46, Mar 31 5:39 pm$3.98, Mar 25 - Apr 14$14.04, Mar 15 - Apr 3$9.76, Apr 3 9:16 am$3.98, Mar 25 - Apr 14$13.89, Apr 6 - Apr 11$9.62, Apr 7 9:52 am$3.98, Mar 25 - Apr 14$13.89, Apr 6 - Apr 11$9.45, Apr 8 6:40 pm$3.98, Mar 25 - Apr 14$13.89, Apr 6 - Apr 11$9.64, Apr 11 4:42 pm$3.98, Mar 25 - Apr 14$13.75, Apr 14 - Apr 21$9.54, Apr 14 8:54 am$3.98, Mar 25 - Apr 14$13.75, Apr 14 - Apr 21$9.44, Apr 15 7:23 pm$3.89, Apr 15 7:23 pm$13.75, Apr 14 - Apr 21$9.24, Apr 18 8:30 am$3.55, Apr 18 8:30 am$13.75, Apr 14 - Apr 21$9.13, Apr 21 1:46 am$3.23, Apr 21 1:46 am$13.67, Apr 23 6:21 pm$8.93, Apr 23 6:21 pm$2.85, Apr 23 6:21 pm$13.67, Apr 26 - May 2$8.94, Apr 26 11:02 pm$2.38, Apr 26 11:02 pm$13.67, Apr 26 - May 2$8.64, Apr 29 8:29 pm$1.97, Apr 29 8:29 pm$13.67, Apr 26 - May 2$8.44, May 2 1:39 pm$1.55, May 2 1:39 pm$14.24, May 5 - May 13$8.34, May 5 4:42 am$1.25, May 5 4:42 am$14.24, May 5 - May 13$8.23, May 6 2:48 pm$1.05, May 6 2:48 pm$14.24, May 5 - May 13$8.03, May 10 5:03 pm$1.25, May 10 - May 13$14.24, May 5 - May 13$7.84, May 13 11:56 pm$1.25, May 10 - May 13$14.38, May 17 - May 22$7.73, May 17 6:33 pm$1.03, May 17 6:33 pm$14.38, May 17 - May 22$7.54, May 22 3:33 am$0.52, May 22 3:33 am$14.42, May 26 - Jun 2$7.44, May 26 7:13 am$0.29, May 26 - Jun 6$14.42, May 26 - Jun 2$7.03, May 30 8:56 pm$0.29, May 26 - Jun 6$14.42, May 26 - Jun 2$7.01, Jun 2 5:41 am$0.29, May 26 - Jun 6$14.46, Jun 4 - Jun 6$6.98, Jun 4 - Jun 6$0.29, May 26 - Jun 6OOS $14.46, Jun 9 3:57 am$7.04, Jun 9 3:57 am$3.18, Jun 9 3:57 am$14.46, Jun 11 5:39 am$7.03, Jun 11 5:39 am$1.61, Jun 11 5:39 am$14.31, Jun 13 - Jun 18$7.02, Jun 13 5:32 am$1.49, Jun 13 5:32 am$14.31, Jun 13 - Jun 18$6.98, Jun 15 4:27 am$1.36, Jun 15 4:27 am$14.31, Jun 13 - Jun 18$6.93, Jun 18 10:42 pm$3.98, Jun 18 - Jun 30$14.16, Jun 22 - Jun 30$6.84, Jun 22 4:11 pm$3.98, Jun 18 - Jun 30$14.16, Jun 22 - Jun 30$6.64, Jun 24 2:19 pm$3.98, Jun 18 - Jun 30$14.16, Jun 22 - Jun 30$6.42, Jun 28 3:04 pm$3.98, Jun 18 - Jun 30$14.16, Jun 22 - Jun 30$6.21, Jun 30 4:23 pm$3.98, Jun 18 - Jun 30$13.36, Jul 4 - Jul 13$5.83, Jul 4 8:10 pm$3.93, Jul 4 8:10 pm$13.36, Jul 4 - Jul 13$5.81, Jul 10 12:54 pm$3.98, Jul 10 - Jul 20$13.36, Jul 4 - Jul 13$5.49, Jul 13 4:56 am$3.98, Jul 10 - Jul 20$12.70, Jul 16 - Jul 20$5.84, Jul 16 - Jul 20$3.98, Jul 10 - Jul 20$12.61, Jul 24 - Jul 27$5.83, Jul 24 - Aug 3$3.95, Jul 24 2:38 am$12.61, Jul 24 - Jul 27$5.83, Jul 24 - Aug 3$3.84, Jul 27 4:02 pm$12.14, Jul 31 - Aug 3$5.83, Jul 24 - Aug 3$3.76, Jul 31 7:21 am$12.14, Jul 31 - Aug 3$5.83, Jul 24 - Aug 3$0.01, Aug 3 9:11 pm$11.82, Aug 7 - Aug 15$5.44, Aug 7 11:53 am$3.30, Aug 7 11:53 am$11.82, Aug 7 - Aug 15$5.42, Aug 9 9:54 am$3.67, Aug 9 9:54 am$11.82, Aug 7 - Aug 15$5.13, Aug 13 7:02 am$3.76, Aug 13 7:02 am$11.82, Aug 7 - Aug 15$4.94, Aug 15 5:39 am$3.72, Aug 15 5:39 am$12.24, Aug 18 - Aug 22$4.73, Aug 18 11:02 pm$3.65, Aug 18 11:02 pm$12.24, Aug 18 - Aug 22$4.43, Aug 22 4:39 pm$3.14, Aug 22 4:39 pm$13.21, Aug 24 - Sep 14$4.34, Aug 24 1:52 pm$2.76, Aug 24 1:52 pm$13.21, Aug 24 - Sep 14$4.22, Aug 26 11:55 am$2.31, Aug 26 11:55 am$13.21, Aug 24 - Sep 14$3.94, Aug 30 6:16 am$1.54, Aug 30 6:16 am$13.21, Aug 24 - Sep 14$3.64, Sep 3 1:14 am$0.71, Sep 3 1:14 am$13.21, Aug 24 - Sep 14$3.44, Sep 6 11:06 pm$0.01, Sep 6 - Sep 10$13.21, Aug 24 - Sep 14$3.34, Sep 10 8:25 pm$0.01, Sep 6 - Sep 10$13.21, Aug 24 - Sep 14$3.24, Sep 14 4:49 pm$1.17, Sep 14 4:49 pm$13.67, Sep 18 - Oct 30$3.04, Sep 18 1:22 pm$0.39, Sep 18 1:22 pm$13.67, Sep 18 - Oct 30$2.91, Sep 22 11:19 am$0.01, Sep 22 - Oct 14$13.67, Sep 18 - Oct 30$2.61, Sep 26 9:23 am$0.01, Sep 22 - Oct 14$13.67, Sep 18 - Oct 30$2.54, Sep 30 8:08 am$0.01, Sep 22 - Oct 14$13.67, Sep 18 - Oct 30$2.33, Oct 4 10:07 am$0.01, Sep 22 - Oct 14$13.67, Sep 18 - Oct 30$1.95, Oct 8 - Oct 22$0.01, Sep 22 - Oct 14$13.67, Sep 18 - Oct 30$1.95, Oct 8 - Oct 22$0.03, Oct 18 - Nov 5$13.67, Sep 18 - Oct 30$1.91, Oct 26 5:20 am$0.03, Oct 18 - Nov 5$13.67, Sep 18 - Oct 30$1.49, Oct 30 4:07 am$0.03, Oct 18 - Nov 5$15.29, Nov 3 - Nov 17$1.41, Nov 3 3:44 am$0.03, Oct 18 - Nov 5$15.29, Nov 3 - Nov 17$1.37, Nov 5 5:28 am$0.03, Oct 18 - Nov 5$15.29, Nov 3 - Nov 17$1.32, Nov 9 8:02 am$0.44, Nov 9 8:02 am$15.29, Nov 3 - Nov 17$1.26, Nov 13 10:49 am$0.47, Nov 13 10:49 am$15.29, Nov 3 - Nov 17$1.38, Nov 17 5:50 pm$0.36, Nov 17 5:50 pm$16.16, Nov 22 3:04 am$1.35, Nov 22 - Nov 24$0.24, Nov 22 3:04 am$15.32, Nov 24 - Dec 3$1.35, Nov 22 - Nov 24$0.15, Nov 24 8:50 am$15.32, Nov 24 - Dec 3$1.34, Nov 29 12:35 am$0.01, Nov 29 - Dec 19$15.32, Nov 24 - Dec 3$1.00, Dec 3 9:59 pm$0.01, Nov 29 - Dec 19$15.35, Dec 8 - Dec 13$1.44, Dec 8 7:58 pm$0.01, Nov 29 - Dec 19$15.35, Dec 8 - Dec 13$1.85, Dec 13 10:32 pm$0.01, Nov 29 - Dec 19$15.38, Dec 19 12:52 am$1.95, Dec 19 - Dec 28$0.01, Nov 29 - Dec 19$15.35, Dec 23 9:01 pm$1.95, Dec 19 - Dec 28$0.41, Dec 23 9:01 pm$15.41, Dec 28 - Jan 2$1.95, Dec 19 - Dec 28$0.19, Dec 28 10:21 pm$15.41, Dec 28 - Jan 2$1.93, Jan 2 5:02 pm$0.05, Jan 2 5:02 pm$15.44, Jan 7 - Jan 15$1.94, Jan 7 2:25 pm$0.01, Jan 7 2:25 pm$15.44, Jan 7 - Jan 15$1.92, Jan 12 - Jan 20$0.48, Jan 12 - Jan 15$15.47, Jan 20 - Jan 25$1.92, Jan 12 - Jan 20$1.17, Jan 20 1:42 am$15.47, Jan 20 - Jan 25$1.95, Jan 25 - Feb 28$1.93, Jan 25 2:18 am$15.50, Jan 30 - Feb 4$1.95, Jan 25 - Feb 28$1.62, Jan 30 2:15 am$15.50, Jan 30 - Feb 4$1.95, Jan 25 - Feb 28$0.23, Feb 4 4:12 am$15.53, Feb 9 - Feb 14$1.95, Jan 25 - Feb 28$0.01, Feb 9 6:05 am$15.53, Feb 9 - Feb 14$1.95, Jan 25 - Feb 28$0.41, Feb 14 1:09 pm$15.56, Feb 19 - Feb 28$1.95, Jan 25 - Feb 28$0.48, Feb 19 - Feb 25$15.56, Feb 19 - Feb 28$1.95, Jan 25 - Feb 28$1.89, Feb 28 2:57 am$15.59, Mar 3 3:07 am$1.93, Mar 3 3:07 am$0.01, Mar 3 - Mar 15$15.62, Mar 15 7:18 am$1.95, Mar 15 - Mar 26$0.01, Mar 3 - Mar 15$15.65, Mar 26 11:38 pm$1.95, Mar 15 - Mar 26$1.87, Mar 26 11:38 pm 38,192787,951 859,375 687,500 515,625 343,750 171,875 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr 2015 2016

Price Details

New

Latest $15.65 Mar 26, '16
Highest $16.23 Sep 19, '13
Lowest $11.82 Aug 7, '15
Average $15.60 (30d avg)
$15.52 (90d avg)
$15.11 (180d avg)
$14.31 (365d avg)
$14.73 (Lifetime average)
Added Sep 19, 2013

3rd Party New

Latest $1.95 Mar 26, '16
Highest $10.80 Jun 19, '14
Lowest $1.00 Dec 3, '15
Average $1.94 (30d avg)
$1.94 (90d avg)
$1.81 (180d avg)
$4.17 (365d avg)
$6.37 (Lifetime average)
Added Sep 19, 2013

3rd Party Used

Latest $1.87 Mar 26, '16
Highest $7.49 Aug 10, '14
Lowest $0.01 Mar 3, '16
Average $0.28 (30d avg)
$0.49 (90d avg)
$0.30 (180d avg)
$1.36 (365d avg)
$2.75 (Lifetime average)
Added Sep 19, 2013

Sales Rank

30 day average: 353,721
90 day average: 396,223

Product Description

In readers enter Randy Lewis' lab where they come face to face with golden orb weaver spiders, and transgenic alfalfa, silkworm silk, and goats, whose milk contains the proteins to spin spider silk--and to weave a nearly indestructible fiber. Learn how this amazing material might someday be used to repair or replace human ligaments and bones, improve body armor, strengthen parachute rope, and even tether an airplane to an aircraft carrier! Readers explore rapid advancements in the application of genetic medicine and their potential to save and improve lives while considering the crucial ethical concerns of genetic research. A timely addition to the acclaimed Scientists in the Field series.

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