Saturday, 20 January 2024

Tigers' stripes

 


Image courtecy of Charles J. Sharp, CC BY-SA 4.0

Joel Kontinen

How did the tiger get its stripes? According to the British nobelist Rudyard Kipling who stated  in 1902 collection Just So Stories for Little Children. The tales were light-hearted explanations of how animals got a certain trait, as the names of the stories indicate, for instance How the Leopard got His Spots or How the Camel got his Hump..

According to Live Science, “Tiger stripes vary between individuals, much like fingerprints in humans. The markings play an important role in helping a tiger remain hidden while hunting prey. The stripes help break up the blend in with tall grass.”

It goes on the say, “in 1952, the British Mathematician Alan Turing theorized that a chemical reaction between two homogeneous substances were responsible for the famous tiger-stripe pattern, along with other patterns commonly found in nature. He dubbed these substances "morphogens." One acted as an "activator" and the other as an "inhibitor" — with the "activator" causing a stripe to form and the "inhibitor" creating a blank space.

And, “In 2012, a study in the journal Nature Genetics experimentally validated this theory by identifying the morphogens at play in the formation of ridge patterns in the mouths of mice.”

This is according to Darwinian storytelling, with no strings attached to the truth. 

Source:

How 10 animals evolved their iconic features | Live Science  6 January.