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Dinozaurii

Dinozaurii.

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Dinozaurii

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  1. Dinozaurii

  2. Dinozauriisuntanimale care au aparutpePamant in urma cu 200 de milioane de ani. Eiaveau fie forma de soparla, fie forma de pasare. Panaacum au fostgasitesiclasificate circa 1300 de specii de dinozauri. Numelelor vine din limbagreacasiinseamna “soparlainfioratoare”, datoritadimensiuniloruriase ale unoradintreele. • Dinozauriitraiaupeuscat – casoparlele, in apa – precumcrocodiliisi in aer – la felcapasarile. Dintredinozauri au aparutsiprimelezburatoare, stramosiipasarilor de astazi. Eiaveauaripi din membrana, cioc lung sighiaresierauacoperiti cu par. Penelepasarilor de astazi au evoluat din acestiperi. Totidinozauriiaveaucoada. • Dupa cum se hraneau, dinozauriierauierbivorisaucarnivori. Dintredinozauriiierbivori au evoluatcelemaimari reptile, cu corpurias, gat lung si cap foartemic in raport cu corpul. Celmai mare dinozaurierbivoravea o greutate de circa 130 de tone si o lungimemai mare de 40 de metri. Dinozauriicarnivorierauferocisiisiurmareaupradaalergandpepicioarele din spate. CelmaicunoscutdinozaurrapitoresteTyranosaurul (“soparlatiran”), care avea cam 12 metrilungimesicantareapeste 8 tone.

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