Losing Key DNA Made Us Modern Humans

https://www.scientificamerican.com/article/losing-key-dna-made-us-modern-humans

The cost of 'bee-ing' too smart: Fast-learning bumblebees die sooner

http://www.dailymail.co.uk/sciencetech/article-4380514/Fast-learning-bumblebees-die-sooner.html

Fruit foraging in primates may be key to large brain evolution

https://www.theguardian.com/science/2017/mar/27/fruit-foraging-primates-may-be-key-large-brain-evolution

Evolution of brain and tooth size were not linked in humans

https://www.sciencedaily.com/releases/2017/01/170102155013.htm?utm_content=buffer3866a&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

For Brains, Bigger Isn’t Necessarily Better

https://research2reality.com/energy-environment-nature/for-brains-bigger-isnt-necessarily-better/