Birds or Aves Skulls Replicas

Shop for Birds or Aves Cast Skulls Replicas Models – Birds are feathered, winged, bipedal, endothermic warm-blooded, egg-laying, vertebrate animals. With around 10,000 living species, they are the most speciose class of tetrapod vertebrates. All present species belong to the subclass Neornithes, and inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from the 2 inch Bee Hummingbird to 9 ft Ostrich. The fossil record indicates that birds emerged within theropod dinosaurs during the Jurassic period, around 150 million years ago. Birds are the only members of the clade originating with the earliest dinosaurs to have survived the Cretaceous Paleogene extinction event 66 million years ago.All of our bird skulls are museum quality, cast from polyurethane resins and made in the USA.

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