Is a sense of humor a byproduct, an accident, or was it installed on purpose? For better health? There definitely seems to be a purpose.
Among the tenets of theistic evolution is the idea that humans evolved from a large population of ape-like creatures.
Scientists have become much more reticent about saying the first couple must be no more than a product of the ancient Hebrew imagination.
Bechly touches on the oldest australopithecine fossil skull ever found, from 3.8 million years ago.
This punctuated, even saltational increase in hominid skull sizes over time continues to be recognized in the literature.