Barophores

Barophores were made to be heavy workers. They go through 4 major life steps, and in all of them they are useful for construction in one way or another. 

They are roughly centaurian in form, having 4 limbs for walking and 2 for grasping. Their skin is thick and anti-adherent, being apt to holding things. Over the short horizontal portion of their torso, there is a slightly concave platform traditionally used to hold objects. Their bones are made of a type of ceramic resistant to pressure, and are secured by strong tendons. 

Life cycle

They are born as larvae and, at this point, they secrete a tissue called loadstring, similar to silk. as they molt, they go through a series of stages, at which they grow from only a meter in size up to 6 meters. They are then used to carry increasingly heavy loads. Then they pupate at around 30 years of age, spinning a large loadstring cocoon, where they quickly grow to around 15 meters. As they finish pupating within a month, they enter the imago stage, at which they are able to secrete concrete, besides carrying even larger weights. Finnally, at around the age of 250 years, they become effigies. They are more frail than their imago selves, being unnable to bear the same load. However, they start to produce eggs within their bodies, and these are released with their death.

Anatomy

As vide supra, Barophores are 4-legges, 2-armed creatures with a plate on their backs. Their head is mounted on a pair of narrow yet strong shoulders, and is shaped roughly like a hammer, with a flat face and a pair of horns.

Their ceramic skeleton is extremelly strong, specially against compression. Excluding the marrow, the bones are a very special assemble. The frame is a bind roughly 30% glaze, 25% calcium, 20% twig, 15% cartilage, 5% aluminum and 5% trace elements. Within, there are many bacillar, columnar, orthogyric, close bits of 80% calcium, 20% glaze. There are however, many small (but superstructural) air pores within the skeleton.