Brontechosaur

Upon my return after a long absence, i find the world i knew radically changed. New and interesting creatures and the options they entail lay bare before me, and a sprawling eden replaces the enclosed, terrariumesque environment i knew. Now my spawn can actually roam in a wild, and show their prowess against wild animals.
I look forward to the opportunities my new situation presents.
My first foray into life crafting goes in a radically different direction than all my previous creations. This new land is littered in places with boneyards of scuttled and forgotten machinery, artifacts from some civilization or mechanized race lost to time. i gathered a large assortment of them, and set about my work. After I had meshed the gathered parts into the desired shape, i placed a beating, living heart into the depths of its breast, and lined its back with organic spinal plates. However, as soon as it sprung to life, I realized just how dangerous this was. 
Whether from some long held malice deep ingrained in the metal that makes up its form, or just natural born viciousness, it lunged at me as soon as it came alive, slashing and snapping at me with its razor sharp fangs. it pursed me, attempting to tear me to shreds, bloodlust apparent in its mechanized eyes. Then suddenly, after a relentless chase, something else must have caught its attention, because it suddenly looked away into the forests and lumbered away...
Design is mine, so don't use without my permission; however, if anybody would be interested in doing a highly detailed version of this or any of my other CHKN beasts, I'd love that; just message me and let me know.