Download Catalogue of the Neotropical Squamata: Part 1, snakes by James A. Peters, Braulio Orejas-Miranda, Roberto PDF

By James A. Peters, Braulio Orejas-Miranda, Roberto Donoso-Barros

Pp. (6), 347, 25, (v-viii), 293; a hundred+ text-figures (line-drawings). unique eco-friendly stiff wrappers, lettered in white at the backbone and entrance disguise, quarto. half I offers the snakes and half II covers Lizards and Amphisbaenians. this can be a revised variation of the unique half set issued in 1970 as usa nationwide Museum Bulletin, no. 297. New fabric has been additional to either components via P. E. Vanzolini. targeted keys are supplied to all species. No possession marks and no symptoms of use.

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Extra info for Catalogue of the Neotropical Squamata: Part 1, snakes

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That seems just so radically different from what human brains do, and when I try to imagine the mental experience of two independent visual fields, each under my conscious control, it exceeds my umwelt no less than trying to imagine a limit to the universe. Although a team of scientists from Israel and Italy have simulated the visual system of chameleons by building a “robotic head” with two independently moving cameras, I am not aware of any attempts to understand how a single brain processes them.

Once airborne, the lower lobe of the tail may be dipped into the water and used as a supercharger to extend flights to 1,200 feet or more. Flights are usually just above the surface, but sometimes gusts of wind carry these aerialists fifteen to twenty feet high, which may explain why they sometimes land on ship decks. I wonder if the respiratory limitations of being a water breather have kept flying fishes from becoming truly flapping their “wings” for fully sustained flight? Fishes of several other types also launch themselves into the air, including the characins of South America and Africa, and—never mind that their name sounds more like a circus act—the flying gurnards.

Some species of Dunkleosteus and Titanichthys measured well over thirty feet. They had no teeth, but could shear and crush with two pairs of sharp bony plates forming the jaws. Their fossils are often found with boluses of semi-digested fish bones, suggesting that they regurgitated these in the manner of modern owls. Although they all went out with the Devonian and have been gone for over 300 million years, nature was kind to the placoderms in preserving some specimens so delicately that paleontologists have been able to deduce some intriguing facets of their lives.

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