here are basically only two ways of explaining why things (and even living creatures) are built like they are.
The prevailing explanation relies on Darwinian mechanisms and it often does not do a good job of doing what it is supposed to do.
The other explanation has been banned from academia but it explains the facts and details much better.
A recent illustration features ammonite shells. A statement from CNRS, the French National Centre for Scientific Research, issued a press release on research on ammonite shells. It describes ammotines as “a group of extinct cephalopod mollusks with ribbed spiral shells”.
“The shape of living organisms evolves over time. The questions raised by this transformation have led to the emergence of theories of evolution. To understand how biological shapes change over a geological time scale, researchers have recently begun to investigate how they are generated during an individual's development and growth: this is known as morphogenesis. Due to the exceptional diversity of their shell shapes and patterns (particularly the ribs), ammonites have been widely studied from the point of view of evolution but the mechanisms underlying the coiled spirals were unknown until now. Researchers therefore attempted to elucidate the evolution of these shapes without knowing how they had emerged.”
They attempted to address this problem. What they failed to see, however, is the inherent beauty and harmony seen in the Fibonacci sequence that the shell makes use of.