As a general rule, biology tends to be conservative. It's...
As a general rule, biology tends to be conservative. It's rare that evolution 'invents' the same process several times.
![Gero Miesenbock Quote About General, Rare, Several, Tends: As A General Rule Biology...](http://qt.azureedge.net/resources/quotes-images-large/as-a-general-rule-biology-tends-to-be-conservative-its-rare-that-evolution-in-b7137e04a7849ac787477d8acf50773e.jpg)
As a general rule, biology tends to be conservative. It's rare that evolution 'invents' the same process several times.