I was also thinking the same when reading the title, they either have a thick skin or their fur is what protects them.
It is really nice to see the actual explanation of how some animals protect themselves from the sun.
Thanks for sharing @steepup!
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You are welcome @dedicatedguy, selective pressure of the sun on animals has helped them alot to protect themselves against ultraviolet light which cause sunburn. Those without fur,scale or feather deviced their own means of protection against sun, and special thanks to gadusol.