Once you admit common design into your explanatory toolkit, the prospect that similar genetic mechanisms would be used in different species isn’t “surprising” at all.
A new book provides some wonderful arguments that challenge common descent and neo-Darwinian explanations of evolution.
Sounds like a candidate for explanation via common design to me.
Orb-weaver spiders are one of the most common types of spiders. They’re the ones you find in your garden, building those beautiful big circular webs.
Bats and cetaceans (whales and dolphins) are very different.