Thursday, December 8, 2011
Only the most impressive animal will do for Santa, and a reindeer's antlers certainly look fancy. Both the males and females grow antlers but the males grow them noticeably larger. The age of the deer determines when their antlers fall off. The older males loose them in December the younger males loose them in spring. Reindeer antlers are the largest compared to their body size.
Why were Reindeer chosen to pull Santa's sleigh? Well, I think it is because they are the only mammal to see ultraviolet light! They can see wavelengths at around 320 nm much better than humans who tap out at 400 nm. This is likely because Reindeer live in the Arctic where the world is often covered in snow and relatively monotoned. Seeing ultraviolet helps certain objects stand out.
Happy Holidays to everyone,