of defense compounds) (Stamp 2004, Barto and Cippolini 2005). A key premise of this hypothesis is that defense is costly. Due to the high structural complexity of defense compounds in sponges it can be assumed that in many cases their biosynthesis is, indeed, metabolically expensive (Paul 1992, Pawlik 1993).
What clothes did the ancient Greeks wear? Ancient Greeks made their clothing from wool or linen and wore heavier clothing in colder temperatures. They fastened their clothing with pins, belts and buttons. Men in ancient Greece wore broad-brimmed hats outdoors, particularly for horseback riding. The chiton was typically made from linen and was a lightweight garment for warmer temperatures. The heavier wool tunic was called a peplos and was floor-length.
Clothing in Ancient Egypt. Clothing in Ancient Egypt was typically made out of white linen. Wool was used also, but it was not allowed in any of the temples because the material came from animals. Due to Egyptian religious beliefs about animals, wool was not permitted to touch the skin. Also, linen was a cooler material, and considering the warmth of the climate, it was better for most Egyptians.