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Ships within 48 hours · Estimated delivery Jun 16 - Jun 21
For Your Every Summer RSVP, with Code: SUMMER15
Description
ENERGÍA Y CIVILIZACIÓN. UNA HISTORIA - Vaclav SmilLa fascinante historia de la civilizacin a travs del prisma de la energa. La energa es la nica moneda de cambio universal. Sin transformacin de energa, no hay nada. La vida en la Tierra depende de la conversin de la energa solar en biomasa vegetal, mientras que los seres humanos hemos aprendido a utilizar otros flujos de energa, como los combustibles fsiles o la generacin fotovoltaica de electricidad. En esta monumental historia, Vaclav Smil ofrece

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4.4 ★★★★★
Based on 1574 reviews
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Product Reviews
★★★★★ 5
Yummy
My dog loved them!
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Reviewed in the United States on March 8, 2026
★★★★★ 5
pig ear alternative
dog loves them
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Chewing pups love them.
My 8 mo Morkie loves them . The other two won't touch them . They're heavier than I expected but Belle doesn't seem to mind that. Great for dogs that like to chew!
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Reviewed in the United States on March 19, 2026
★★★★★ 3
Meh..., I'll stick to fave pig ear chews
Only 4 for $6, idk these don't last long. I wanted to try them because my dogs love being spoiled but I think I'll stick to pig ears at a discount from Petco. They are very hard, some chews crumble or soften as the dogs knaw at them during the day. However these chews didn't last longer than 10 minutes compared to actual no rawhide alternatives I have used. These didn't do that. No upset stomach so that's a plus. The smell was similar to pig ears also, texture was different. No slimy residue w/ it unlike with the regular 100% pig ears. Helped with plague build up but there is still plague on insicor tooth. Probably won't buy again, meh.
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Reviewed in the United States on December 16, 2025
★★★★★ 4
Dog bones
Good price dog likes it not enough in bag and can choke if dog chews it down
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Reviewed in the United States on February 28, 2026




