The strikingly iridescent blue seen in some butterfly, beetle, and bird feathers is well-known and enjoyed by scientists and laymen alike. This is due...
Natural stone arches are commonly made of sandstone or limestone and are found in coastal cliff areas that can be eroded by wave action. Other arches...
Flowers are as beautiful as they are complex. Flowers (Anthophyta) are designed with a receptacle (axis) upon which are found the carpel (ovary, style...