Tuesday, July 15, 2014

Short vs. Regal

Photo by Mark Hengesbaugh  7/9/2014

Photo by Mark Hengesbaugh 7/9/2014

Greater Short-horned Lizards stole the show on Ned's Nature walk on Mt Lemmon. Mark and company saw young and several mature lizards with vastly different coloration. Greater Short-horned lizards inhabit higher elevations and give birth to live young. The young are in an amniotic sac, though, and have to break out. (Shorter breeding season is probably the reason for that adaptation.)
We see Regal Horned Lizards in Sabino Canyon (and other low areas) and they lay "real" eggs. How about that? 

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