Life & Evolution

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Ptyas mucosa fossil

SEE-THROUGH SKULL  X-ray scans of the skulls of lizards and snakes, including Ptyas mucosa, the oriental rat snake, reveal clues that today’s snakes descended from burrowers.

tarantula Chromatopelma cyaneopubescens

BLUE MYSTERY  Internal structures, not pigment, puts blue in hairs on the tarantula Chromatopelma cyaneopubescens. What drives the evolution of such color in animals that probably can’t see it still puzzles researchers.

Burmese python

The Burmese python can go weeks or months between enormous meals of entire animals. 

Life & Evolution

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